# JSS 2 Mathematics Past Questions and Answers

## Objective Questions

**Instruction: Answer ALL questions from this section**

1. Express 18 as a product of its prime factors

a) 3 x 3 = 32 b) 2 x 3 x 3 = 22 x 32

c) 2 x 2 x 3 x 3 = 22 x 32 d) 2 x 2 x 3 = 22 x 32

d) 2 x 2 x 2 x 3 = 23 x 31

2. Find the HCF of 36 and 60

a) 12 b) 14 c) 16 d) 18 e) 22

3. Evaluate 62

a) 12 b) 14 c) 24 d) 36 e) 42

4. Find the square root of 25

a) 5 b) 10 c) 15 d) 20 e) 25

5. Find 10% of 400

a) 10 b) 20 c) 30 d) 40 e) 50

6. Convert 3:4 to percentage

a) 55 b) 65 c) 75 d) 85 e) 95

7. Find the simple interest on N500 for 2 years

a) 1 b) 2 c) 3 d) 4 e) 5

8. Round off 9324 to 1 significant figure

a) 9.32 b) 9.3 c) 932 d) 9000 e) 9.300

9. What is the multiplicative inverse of 11/20?

a) 1/2 b) 0/2 c) 20/2

d) 11/12 e) 2/11

10. Simplify ab(a – b)

a) aba – abb b) abba – bb c) bb – aba d) aa – aba e) ba – aba

11. How many lines of symmetry has a square?

a) 3 b) 4 c) 5 d) 6 e) 7

Use the diagram below to answer questions 12, 13 and 14

12. What is the value of angle a?

a) 76o b) 77o c) 78o d) 79o e) 80o

13. What is the value of angle b?

a) 100o b) 101o c) 102o d) 103o e) 104o

14. What is the value of angle c?

a) 76o b) 77o c) 78o d) 79o e) 80o

15. The cardinal points are made up of primary directions of ____

a) North East, South, and West b) North East and West

c) North, East and West

d) North, East, SouthNorth and West e) North, West

16. Write the bearing of X from Y in the diagram below

a) 065o b) 075o c) 085o d) 85o e) 75o

17. Which one is a Pythagoras’s rule?

a) c2 = a2 + b2 b) c2 = c2 + b2 c) c2 = b2 – a2

d) b2 = a2 + a2 e) b2 = b2 + a2

18. Which of the following is a Pythagorean triple?

a) 2, 9, 11 b) 21, 22, 23 c) 12, 35, 37

d) 13, 35, 37 e) 14, 34, 37

19. A right angled triangle is a triangle which one of the angles is ____

a) 360o b) 270o c) 180o d) 90o e) 0o

20. Bearing is measured in ____

a) clockwise direction b) anticlockwise direction c) wile direction

d) upward direction e) downward direction

## Essay Questions

1. Write the bearings of a) X from Y b) Y from X

2. Solve and state whether any 30, 40, 50 is a Pythagorean triple or not.

3. Find the value of angles a and b

4. Fin the bearing of X from Y

5. Find the value of x in this triangle

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