ERC BECE MATHEMATICS 2024

 ERC MATHEMATICS 2024:

Instruction: Answer all the questions in this section.

1.       What is the place value of 5 in the figure 2567894013? A. Five hundred thousand   B. five million  C. fifty million   D. Five hundred million

2.       Write 411 in roman numerals  A. CDXI  B. CDII   C. CXV  D. CDIX

3.       What is the greatest common factor of 42, 70 and 98?   A. 2  B. 4  C. 7  D. 14

4.       Identify the prime factor of 60  A. 3 and 5   B. 2, 3 and 5  C. 2 and 3  D. 1 and 2

5.       Express 360 as a product of its prime factor   A. 2³ x 3² x 5   B. 2² x 3³ x 5²  C.  2³ x 3² x 5²   D. 2⁴ x 3³ x 5

6.       Write 0.00682 in standard form  A. 6.82 x 10^-4  B. 6.82 x 10^-3  C. 6.82 x 10^-2   D. 6.82 x 10^-4    

7.       What is the H.C.F of 4m²n² and 8m²n²  A. 4mn  B. 4m²n²   C. 8 m²n²  D. 80mn

8.       Find the H.C.F of 54, 36 and 72  A. 18  B. 16  C. 12  D. 8

9.       Find the smallest number that can be completely divisible by 12, 15 and 25  A. 120  B. 150  C. 180  D. 300

10.   What is the least number that must multiply 84 to give a perfect square?  A. 2  B. 17  C. 21  D. 33

11.   Find the LCM of 12, 18 and 32   A. 288  B. 298   C. 299  D. 388

12.   Express 32 thousandths as a decimal number  A. 0.032  B. 0.0032  C. 0.00032   D. 32000

13.   \(\text{Find the square root of } 3\frac{6}{25}\ \ \text{A. } 1\frac{4}{5}\ \ \text{B. } 1\frac{3}{5}\ \ \text{C. } 1\frac{2}{5}\ \ \text{D. } 1\frac{1}{5}\)

14.   Simplify \(1\frac{3}{4} - \left(2\frac{1}{3} + 4\right)\ \ \text{A. } 2\frac{3}{4}\ \ \text{B. } 1\frac{3}{4}\ \ \text{C. } -2\frac{3}{4}\ \ \text{D. } -3\frac{3}{4}\)

15.   Which of the following fraction is equivalent to\(\frac{3}{5}?\ \ \text{A. } \frac{9}{27}\ \ \text{B. } \frac{12}{20}\ \ \text{C. } \frac{8}{16}\ \ \text{D. } \frac{4}{18}\)

16.   Express 0.03076 to three (3) significant figures   A. 0.030   B. 0.0307  C. 0.0308   D. 0.03078

17.   Change 91.3% to a decimal fraction    A. 0.913   B. 91.3  C. 913.0   D. 9130

18.   The  following graph represent   A. x ˂ 2  B x ≤ 2   C. x ≥ 2    D. x > 2

19.   Find the range of values of x which satisfies the inequality \(\frac{1}{2}x\)  + 5 ≤ 3  A. x ≤ - 4   B. x ≤ -1  C. x ≥ -1   D. x ≥ -4

20.   \(\text{Simplify } \frac{\sqrt{45}}{125}\ \ \text{A. } \frac{9}{25}\ \ \text{B. } \frac{3}{5}\ \ \text{C. } \frac{3}{4}\ \ \text{D. } \frac{4}{5}\)

21.   Express 0.000095 in standard form.   A. 9.5 x 10^-6   B. 9.5 x 10^-5   C. 9.5 x 10⁶     D. 9.5 x 10⁵

22.      If m = 2, n = 5 and y = 3, evaluate  \(\frac{m(n+y)}{nm}\)   A. 16.0   B. 1.6    C. 0.16   D. 0.016

23.   Which of the following numbers is non-rational A. √10   B. √64  C. 3/5   D. 0.02

24.   Evaluate 1101_two x  101_two A. 100001_two  B. 110001_two  C. 1000001_two   D. 1010011_two

25.   What is the bill of a house that consume 1000 units of electricity, if the first 100 units are charged at ₦10.00 per unit and the remaining unit at ₦5.00 per unit  A. ₦4500.00   B. ₦5000.00  C. ₦5500.00  D. ₦6000.00

26.   The ratio of sheep to goat on a farm is 5:8, if there are 50 sheep on the farm calculate the total number of livestock on the farm.  A. 130  B. 90  C. 80  D. 40

27.   A car travel for 500km on 50 litres of petrol. How many kilometers will it travel on 35 litres  A. 75km  B. 85km  C. 350km  D. 380km

28.   If it takes a driver 5 hours to drive a distance of 600km, calculate the average speed.  A. 100km/h   B. 120km/h   C. 150km/h  D. 180km/h

29.   A 50kg bag of rice is reduced by 15% find the quantity of the rice left  A. 42.5kg   B. 35kg  C. 29.5kg   D. 7.5kg

30.   Simplify 3a – 5(b – 2a) + 2b  A. a – 3b  B. a – 7b  C. 13a – 3b  D. 5a – 7b

31.   Factorize 24pq – 16p²  A. 8p(3q +2p)  B. 8p(3q – 2p)  C. 8(3pq + 2p)  D. 8(3pq – 2p²)

32.   Solve the following pair of simultaneous equation  2x – y = 5 and x – 2y = 4  A. x = - 2; y = -1   B. x = -2; y = 1   C. x = 2; y = 1  D. x = 2; y = - 1 

33.   An investor invested 200,000 in a company that pay 5% interest per annum. How much will he get after 3 years?  A. ₦230,000    B. ₦205,000   C. ₦170,000  D. ₦30,000

34.   R varies directly as S and inversely as T. if R = 8 when S = 4 and T = 3, then R is equal to _____ \(\text{A. } \frac{3T}{2S}\ \ \text{B. } \frac{3S}{3T}\ \ \text{C. } \frac{6S}{T}\ \ \text{D. } \frac{6T}{S}\)

35.   If the area of a square tile is 4cm². How many tiles is needed to cover a floor measuring 12m by 8m?  A. 600 tiles B. 2400 tiles  C. 28000  D. 3840 tiles

36.   Find the circumference of a circle whose diameter is 21cm.\(\pi = \frac{22}{7}\)  A. 22cm  B. 32cm  C. 33cm   D. 66cm 

37.   Find the perimeter of the triangle below.  A. 3cm  B. 4cm  C. 6cm  D. 12cm

38.   Calculate the area of the trapezium below   A.  720cm²   B. 360 cm²   C. 256 cm²  D. 180 cm² 

39.   (i) A rhombus has two (2) lines of symmetry  (ii) A kite has two (2) lines of symmetry (iii) A decagon has nine (9) sides  (iv) A sphere has four (4) angles.  Which of the above statement is correct  A. i    B. i, ii and iii    C. ii and iv   D. ii

40.   Which of the following shapes has equal sides?  A. Triangle  B. Kite   C. Rhombus  D. Hexagon

41.   The scale factor of two similar portraits is 2:5, if the area of the smaller portrait is 120cm². Calculate the area of the larger portrait.   A. 750cm²  B. 300 cm²   C. 60 cm²   D. 48 cm²

42.   A polygon with 8 sides is called _____  A. hexagon  B. octagon   C. pentagon  D. nonagon 

43.   ________ is the formula for calculating sum of interior angles of a polygon  A. (2n + 2)180°   B. (2n – 2) 180°   C. (n + 2) 180°   D. (n – 2) 180°

44.   How many vertices have cuboids?  A. 8  B. 12  C. 13  D. 14

45.   Find the value of x in the diagram below   A. 1.   B. 2   C. 3  D. 4

46.   The value of the angle marked θ in the diagram below is _____   A. 80°  B. 180°   C. 240°  D. 270°

47.   Find the value of θ in the diagram below.   A. 40°   B. 60°  C. 70°   D. 180°

48.   Complete the following set of Pythagorean tripe 5, 12, _____   A. 19  B. 16   C. 14  D. 13

49.   Which of the following angles can be constructed using a pair of compass and ruler only?  A. 85°  B. 95°  C. 105°  D.  117°

50.   What is the reciprocal \(\text{of } \frac{1}{2}r\ \ \text{A. } \frac{2}{r}\)  B. 2r   C. 1   D. -2

51.   If the bearing of A from B is 150°, what is the bearing of B from A?   A. 360°   B. 330°   C. 240°  D. 180°

52.   If P varies as Q and K is constant then the formula connecting P and Q is ______  A. P = KQ   B. P = K + Q   C. P = Q/K    D. P = K/Q  

53.   If the mean of 12, 15, x, 13 and 17 is 16, find the value of x.  A. 23  B. 19   C. 18  D. 14

The table below is recorded of the favorite games of some students in school

Types of Games	wrestling	Lawn Tennis	Football	Table Tennis	Athlete
Number of Students	2	4	24	16	4

Use the information to answer questions 54 – 56

54.   What game was the most favorite for most students?  A. wrestling  B. Lawn tennis  C. Table tennis   D. Football  

55.   What is the least liked by the students?  A. Wrestling   B. Lawn tennis  C. Football  D. Table tennis 

56.   What is the probability that a student picked at random from the school liked Lawn tennis most? A. 0.08  B. 0.2  C. 0.48  D. 0.16

57.   There are 10 red pens and 25 blue pens in a pack of 50 pens. If the rest of the pens are black. Find the probability of picking a black pen from the pack  A. 3/10  B. 3/6   C. 2/5  D. 7/10

58.   The probability that it will rain in a particular month is 0.68. what is the probability that it will not rain.  A. 0.48  B. 0.42  C. 0.32  D. 0.30

59.   The mode of the numbers 3, 5, 10, 5, 4, 3, 5, 6 and 8 is _____    A. 3  B. 4  C. 5  D. 6

60.   Find the median of the following set of numbers 5, 6, 4, 2, 3, 2, 8, 4, and 5  A. 8   B. 6  C. 5  D. 4

 

SECTION B: ESSAY

Instruction: Answer all Questions Each. Each question carries 10 mark.

Note: calculators are not allowed

1a. use the triangle below to answer the following questions

(i). What is the sum of all its sides and simplify the resulting algebraic expression?  

(ii). Calculate the value of x if the perimeter of the triangle is 46cm.

(iii) Calculate the length of each side of the triangle

b. Solve X² + 7x + 10 = 0 

2a. the pie chart bellows the distribution of a man’s monthly income.

(i). What is the size of the angle represented by OTHERS?

(ii). If the man’s monthly income is ₦180,000. How much does he spend on transportation?

(ii). What percentage of his monthly income does he save. Correct your answers to two (2) significant figures

b. \(\frac{6\frac{3}{4}}{\left(21\frac{1}{3} \times 2\frac{1}{4} - 21\right)}\)

3a. solve the equation  \(\frac{2(2x + 1)}{3} = \frac{x - 3}{2}\)

(ii). Find the reciprocal of 0.004

b. solve the simultaneous equation  3x + 2y = 5 and  2x – 3y = -1

4a. using a pair of compass and a ruler only construct a triangle <ABC such that ABC = 60°, <BAC = 45° and /AB/ = 5.6cm. measure /BC/ and /AC/.

b. make J the subject of the formula in the equation  T = ½AJ² + trs.   

ERC BECE MATHEMATICS 2025

ERC MATHEMATICS 2025:

Instruction: Answer all the questions in this section.

1. Write 3025 in Roman numerals. A. MMMXXV B. MMMCCV  C. MMMXXV  D. CCXXV
2. What is the value of the digit in 8 in the figure 6.085? A. hundred  B. tens  C. hundredth  D. tenth
3. Write 0.07465 in its standard form. A. 7.45 x 10²   B. 7.465 x 10³  C. 7.465 x 10^-2  D. 7.465 x 10^-3
4. Express 504 as a product of its prime factors in index form.  A. 2² x 3³ x 7¹  B. 2⁴ x 3³ x 7¹  C. 2³ x 3² x 7¹   D. 2⁵ x 3⁴ x 7¹
5. Find the HCF of 21, 35 and 56?  A. 2  B. 5  C. 3  D. 7
6. Find the LCM of 15 and 36.   A. 160   B. 170  C. 180  D. 200
7. The number of students in a Secondary school in Bwari area Council is 5400. Express this figure as a product of its prime factor in the index form.  A. 2³ x 3³ x 5² B. 2² x 3³ x 5²    C. 2² x 3² x 5²  D. 2³ x 3³ x 5
8. Which of the following numbers is completely divisible by 9?  A. 18089  B. 18099  C. 18980  D. 19898
9. Determine the numerator, when 18 7/8 is converted to an improper fraction.  A. 127  B. 147  C. 151  D. 161
10. Simplify the expression x³ × x × x⁵.  A. x⁻⁸  B. x⁻¹  C. x⁻²  D. x⁸
11. Ade scored 16 out of 30 sums correct. Express his score in percentage.   A. 85.3%  B. 73.3%  C. 63.3%  D. 53.3%
12. Evaluate (111₂)².   A. 110001₂  B. 110010₂  C. 11001₂  D. 1010₂
13. Simplify \(\left(2\tfrac{1}{2} + 1\tfrac{2}{3}\right) \div 1\tfrac{3}{4}\) A. \(3\tfrac{1}{2}\) B. \(4\tfrac{1}{6}\) C. \(2\tfrac{1}{2}\) D. \(1\tfrac{2}{5}\)
14. Change 0.95 to a fraction in its lowest term.  A. \(\frac{95}{100}\) B. \(\frac{19}{20}\) C. \(\frac{15}{20}\) D. \(\frac{29}{50}\)
15. Find the sum of 10110₂ and 10101₂.
    A. 100101₂  B. 100111₂  C. 101010₂  D. 101011₂
16. Find the range of values of y which satisfy the inequality: 3y − 2 ≤ 5y + 4.   A. y ≥ 2  B. y ≥ 3  C. y ≤ 2  D. y ≤ 3
17. What inequality does the number line below represent?  A. x ≤ 2  B. x ≤ −2  C. x ≥ −2  D. x ≥ 2
    
    
    
18. Find √441.   A. 3  B. 9  C. 17  D. 21
19. Write 37,500 in standard form.  A. 3.75 × 10⁴  B. 3.75 × 10³  C. 3.75 × 10²  D. 3.75 × 10⁰
20. Evaluate 3⁴.  A. 81  B. 64  C. 12  D. 7
21. The population of a state is 3,652,473. Write this figure to the nearest hundreds.   A. 3,700,000  B. 3,650,000  C. 3,652,500  D. 3,600,000
22. Evaluate \(\frac{p^2 + 3q}{2r}\) given p = 4, q = 3 and r = −5.  A. −5  B. −5/2  C. 5/7  D. −11/5
23. Express 0.00853 to 1 significant figure.  A. 0.009  B. 0.0081  C. 0.0085  D. 0.008
24. Express\(\frac{7}{19}\) as a percentage, correct to 1 decimal place.   A. 2.7%  B. 3.7%  C. 27.1%  D. 36.8%
25. Simplify: 3(a − 2b + c) − 2(a + 3b − 2c).   A. a − 3  B. a − 12b + 7c  C. a − 12b + 3c  D. a − 12b − 3c
26. Find the next two terms in the sequence 4, 8, 12, 16, ___ ___    A. 20, 24  B. 28, 32  C. 36, 40  D. 20, 22
27. Find the simple interest of ₦500 for 3 years at 4%.  A. ₦45  B. ₦60  C. ₦70  D. ₦72
28. Mr. Obi sold a car for ₦84,000 at a loss of 4%. For how much did he buy the car?   A. ₦80,500  B. ₦80,640  C. ₦87,360  D. ₦87,500
29. In a boutique, two pairs of trousers and a packet shirt cost ₦17,000. The difference between three pairs of trousers and a packet shirt is ₦8,000. Find the cost of a pair of trousers and two packet shirts.  A. ₦19,000  B. ₦12,000  C. ₦9,000  D. ₦7,000
30. Adams runs a distance of 800 m in 2½ minutes. Calculate his speed.  A. 300 m/min  B. 320 m/min  C. 400 m/min  D. 600 m/min
31. It takes five girls eating the same ration six days to finish a supply of food. How long will the supply last three girls at the same ration?  A. 4 days  B. 5 days  C. 8 days  D. 10 days
32.   What number should be in the box to make 13 +  ロ  = 22  A. -9   B. 11   C. 13  D. 15 
33. Find the sum of angles in an octagon  A. 800°   B. 900°   C. 1080°  D. 1260°
34. The ratio of birds to livestock on Mr. oni’s on the farm, how many livestock are there?  A. 600  B. 500  C. 250  D. 100
35. Find the value of x in the figure below   A. 22°  B. 56°  C. 34°  D. 112°
    
    
    
36. The adjacent sides of a right angle triangle are 5cm and 12cm respectively. What is the length of the hypotenuse  A. 13cm   B. 17cm  C. 45cm   D. 60cm
37. Find the size of the missing angle x° in the quadrilateral, in the figure below  A. 104°  B. 360°   C. 256°   D. 420°
    
    
    
38. Calculate the area of a parallelogram of base 12cm and 7cm high  A. 19cm²  B. 38 cm²   C. 42cm²  D. 84 cm²
39. What is the perimeter of the figure below? A. 54cm  B. 44cm  C. 49  D. 32cm 
    
    
    
40. Suppose that θ is an acute angle for which tan θ = \(\frac{3}{4}\), find sinθ  A. 3/5    B. 4/5  C. 5/4  D. 4/3
41. In the figure below, two equal angles are shown. These angles are A. alternate angles  B. corresponding angles   C. acute angles  D. vertically opposites angles
    
    
    
42. What is the value of x in the figure below?  A. 180°  B. 85°  C. 90°  D. 60°
    
    
    
43. What is the diameter of a circle whose area is 616cm²? A. 30cm  B. 25cm    C. 28cm  D. 14cm
44. The radius of a cone is 6cm. given that the height of the cone is 14cm and \(\pi = \frac{22}{7}\). Calculate the volume of the cone.  A, 250 cm²   B. 350 cm²  C. 500 cm²  D. 528cm²
45. The adjacent sides of a triangle are 12cm and 15cm respectively, calculate its perimeter.  A. 60cm  B. 30cm  C. 17cm  D. 13cm
46. Find the value of x in the figure below  A. 180°  B. 21°   C. 138°  D. 42°
    
    
    
47. Find the sum of interior angles of a regular pentagon.  A. 180°   B. 720°   C. 540°  D. 900°
48. Given that, v = u + at, make t the subject  A. \(t = \frac{v - u}{a}\) B. \(t = \frac{v + u}{a}\) C. \(t = \frac{u - v}{a}\) D. \(t = u - av\)
49. Solve the simultaneous equation 3x – y = 4 and x + 2y = 6  A. x = 2, y = 2  B. x = 2, y = 3   C. x = 3, y = 2   D. x = 1, y = 2
50. The bearing of a school farm from the library is 075°. Obtain the bearing of the library from the farm.  A. 015°  B. 075°  C. 105°  D. 255°
51. If the probability of scoring in a match is 0.8. What is the probability that they will not score in that particular match?  A. 1   B. 0.4    C. 0.2  D. 0
52. The sum of two numbers is 12. Their difference is 2, find the numbers. A. 7, 5  B. 7, 8  C. 9, 3  D. 9, 4
53. If 6 students bought a pen and a novel for ₦50 and ₦300 respectively. Find the total cost of the items  A. ₦ 1200  B. ₦1100  C. ₦1000   D. ₦ 900
54. If 4 is the mean of the following set of numbers 1, 2, x, 7, 6. What is the value of x? A. 7  B. 8  C. 4  D. -4 
55. What is the range of the following set of numbers -2, -1, -5, 0, 2?   A. 7  B. 4  C. -4  D. 6
56. If b 2 directly proportional to a and  b = 10 when a = 2, find a if b = 35.   A.

The pie chart below shows the record of animals in a ranch, use the chart to answer questions 57 to 60.

57. If there are 36 animals in the ranch, how many rabbit are there?  A. 120  B. 36  C. 24  D. 12
58. What is the size of angle represented by sheep?  A. 140°   B. 100°  C. 80°  D. 60°
59. If an animal is picked at random from the ranch, what is the probability that it is a cow?  A. \(\frac{1}{2}\) B. \(\frac{1}{3}\) C. \(\frac{2}{5}\) D. \(\frac{1}{4}\)
60. How many goats are in the ranch?  A. 6  B. 7  C. 8  D. 10

Section B: ESSAY

Instruction: Answer all questions. Each question carries 10 marks

NOTE: Calculator is NOT allowed.

1. The scores obtained by some students in a mathematics test are given below; 4,5,6,9,7,5,8,6,5,7,6,7,5,6,10,5,6,7,6,8,4,6,10,9,8,7,9,8,6,7

a. prepare a frequency distribution table

b. Find:  i. Range of the scores    ii. Modal of the scores    iii. Mean of the scores  iv. Probability of selecting a student who scored 7

2. a. if the sum of two numbers is 60 and the positive difference between the numbers is 20. Determine the numbers.

b. Make f the subject of the formula \(\frac{1}{u} = \frac{1}{f} - \frac{1}{v}\)

3. a. A ladder 5m long leans against an electric pole. If the distance between the foot of the ladder and that of the electric pole is 4m, how far up the electric pole does the ladder reach?

b. calculate the simple interest on ₦450.00 for 1½ years at 8% per annum.

c. convert 110111_two to base ten.

4. a. How many liters can be held by a cylindrical can 7cm in diameter and 30cm high? If \(\pi = \frac{22}{7}\)

b. Calculate the number of sides in a regular polygon whose one interior angle is 160°

 

 

 

Click for Answers

 

WAEC Data processing 2024

 

1. The Stepped Reckoner was developed by A. Gottfied Leibnitz. B. Herman Hollerith C. John Von Neumann  D. William Schickard
2. The binary number 100101 can be written in denary as
   A. 25  B. 37  C. 45  D. 211
3. The first stage in computer data processing procedure is
   A. collection of data  B. communication of information  C. conversion of data  D. manipulation of data
4. One advantage of electronic data processing is that it
   A. involves special skill  B. deals only with simple data  C. is completely error-free  D. handles complex data
5. The type of computer that has the ability of counting in discrete form is referred to as
   A. analogue computer  B. digital computer  C. hybrid computer  D. versatile computer
6. One reason for using Computer Aided Design in manufacturing is that
   A. it uses few system resources  B. manufacturing time is reduced  C. designers do not need training to use it  D. 3D designs are easily produced with it
7. Which one of the following statements is true about Voice Over IP? It
   A. converts voice and video data into a digital signal and transfers it over the Internet
   B. converts voice and video data into a digital signal and broadcasts it via a transmitter
   C. is a voice over communication system which is cyber-attack proof
   D. is a circuit-switched data communication system
8. Which one of the following sets of devices can be used to store data during processing?
   A. Cache, RAM and Register  B. Cache, Register and ROM  C. Flash Drive, ROM and Hard Disk Drive  D. RAM, Register and Zip Drive
9. The process of inspecting, transforming and modeling data to get useful information is known as
   A. collation  B. interpretation  C. execution  D. analysis
10. One disadvantage of using computer for information processing is
    A. need for staff retraining  B. increased running cost in the long run  C. the increase in storage space  D. redundancy of computers in the long run
11. The diagram in Figure 1 illustrates process called 
    
    A. information processing  B. information transmission  C. modulation  D. synchronization
12. The transmitter in communication is the component that
    A. decodes sender's signal by interpretation  B. encodes interpreted data by using machine language  C. broadcasts synchronous signals  D. launches signal into the air
13. Which of the following resources is not usually shared in a network?
    A. VGA projector  B. Laserjet printer  C. Folder  D. File
14. Factors to be considered when creating a backup system in a computer network include
    A. amount of RAM, amount of data and time of backup
    B. amount of RAM, type of data and frequency of backup
    C. media to use, amount of data and frequency of backup
    D. media to use, type of data and time of backup
15. The URL www.exams.edu.ng represents the website of
    A. an examination body  B. a Nigerian-based learning institution  C. an educational institution in Niger  D. a research institution in Niger
16. The Post Office Protocol (POP) is used to
    A. interconnect devices on the Internet  B. retrieve email from a mail server  C. transfer file from a server to a client  D. send email from one user to another
17. A user working on a computer that is running on Windows 7 issued the command Ctrl + Alt + Del while typing a document.
    What interface is expected to be displayed on the screen?
    A. Restart Windows  B. Shut Down Windows  C. Windows Security  D. Windows Task
18. Header and Footer are added to a document in MS Word by just clicking on the
    A. Edit menu  B. Format menu  C. Insert menu  D. View menu
19. A typist positioned the insertion point at the beginning of a line of text in a word processor and then pressed down the Shift key and clicked at the opposite end of the text. What would be the result of this action? The text will be
    A. copied into the clipboard  B. cut into the clipboard  C. deleted from the storage  D. highlighted on the screen
20. The Microsoft Excel menu bar icon shown in Figure 2 is used to
    
    
    
    A. automatically add up selected values  B. create label that spans multiple columns  C. spot trends and patterns in user's data using bars, columns and icons  D. organize data for easy analysis
21. To add a new column to the right of the IGR column on the interface in the figure above, the user would
    
    
    
    A. right-click on cell C1 and then click on insert  B. right-click on cell D1 and then click on insert  C. right-click on column C and then click on insert  D. right-click on column D and then click on insert
22. The function of the foreign key in a database is to
    A. uniquely identify tuples in a table  B. provide a link between data in two tables  C. uniquely identify an entity occurrence  D. uniquely identify each record in a table
    
    
    
23. How many primary keys exist in the figure above?
    A. 3  B. 4  C. 5  D. 12
    
    
    
24. Which of the following lists contains the primary keys in the figure above?
    A. Customers, Orders, and Products  B. CustomerId, OrderId, ProductId  C. CustomerId, FirstName, LastName and DateCreated  D. Customers, CustomerId, FirstName, LastName, and DateCreated
25. Web design packages include the following, except
    A. Macromedia Dreamweaver  B. iWeb  C. Front Page  D. Adobe PageMaker
    
    
    
26. The part labelled IV in the image above is used to
    A. shape objects  B. select and transform objects  C. draw lines and curves  D. create texts
27. One precautionary measure taken when cleaning a monitor is
    A. covering the monitor with antiglare  B. cleaning the monitor with alcohol  C. unplugging the power supply cable  D. using a vacuum cleaner to dust the monitor casing
28. Which one of the following practices is considered ethical?
    A. gaining access into school database to change one's grades
    B. gaining access into government database to alter personal details
    C. logging into a friend's social media account to read inbox messages
    D. signing into school e-library to read e-books
29. Proper network implementation and good ICT policies are types of
    A. adaptive measures  B. corrective measures  C. perfective measures  D. preventive measures
30. Preventive maintenance measures in the computer room include the following options except
    A. good ventilation  B. proper illumination  C. the use of rugs  D. the use of tiles
31. A database administrator is responsible for the following tasks except
    A. controlling and monitoring user access to the database
    B. enrolling users and maintaining system security
    C. maintaining archived data
    D. maintaining connection between the local network and the Internet
32.  Measures taken to avoid eye strain include the following except
    A. adjusting the brightness of the monitor
    B. adjusting the height of the screen
    C. blinking of eyes often
    D. relaxing the body regularly
33. A computer virus replicates itself into other programs or certain areas on the disk during the
    A. dormant phase  B. execution phase  C. propagation phase  D. trigger phase
34. A malware that copies and replicates itself using computer networks and security flaws is
    A. Rootkit virus  B. Spyware  C. Trojan horse  D. Worm
    
    
    
35. The entities in the figure above are named
    A. RegNo, Name and Age  B. Musa, Uche and Bayo  C. Student and Subject  D. Maths, Eng and DP
36. Which one of the following statements is true about database tables?
    A. All the tables in a database have a common name
    B. A table may contain repeating groups
    C. Entries in a column are from different domains based on datatype
    D. There are no duplicate rows in a table
37. The major difference between serial and sequential files is that sequential files are
    A. given a key  B. sorted in a particular order  C. stored as they come  D. recorded in any storage medium
38. Which one of the following pairs contains computer file classification?
    A. Master file and serial file  B. Random file and master file  C. Reference file and random file  D. Transaction file and master file
39. Which of the following statements supports the goals of data backup?
    I. Need for duplication  II. Need for future reference  III. Protection against data loss  A. I and II only  B. I and III only  C. II and III only  D. I, II and III
40. Which of the following characteristics is associated with the architecture of parallel database?
    A. Communication cost and problems cannot be ignored
    B. Machines can be far from each other
    C. Machines are physically close to each other
    D. It is usually associated with shared-nothing architecture

 

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