## Mathematics WAEC past questions and answers

Here are 20 mathematics exam questions with options and answers:

What is the value of π (pi)?

a) 3

b) 3.14

c) 22/7

d) 4.5

Answer: b) 3.14

Solve for x: 2x + 5 = 15.

a) x = 5

b) x = 10

c) x = 7.5

d) x = 20

Answer: a) x = 5

What is the square root of 25?

a) 5

b) 10

c) 3

d) 7

Answer: a) 5

If a triangle has angles of 90 degrees, 45 degrees, and 45 degrees, what type of triangle is it?

a) Equilateral

b) Isosceles

c) Scalene

d) Right-angled

Answer: d) Right-angled

What is the area of a rectangle with length 8 units and width 6 units?

a) 14 square units

b) 42 square units

c) 48 square units

d) 64 square units

Answer: c) 48 square units

If 3x - 7 = 14, what is the value of x?

a) x = 5

b) x = 7

c) x = 8

d) x = 9

Answer: d) x = 9

What is the value of 5! (5 factorial)?

a) 10

b) 15

c) 120

d) 25

Answer: c) 120

Solve for y: 2y/3 = 8.

a) y = 4

b) y = 6

c) y = 12

d) y = 24

Answer: b) y = 6

If a circle has a radius of 5 cm, what is its circumference?

a) 10π cm

b) 15 cm

c) 31.4 cm

d) 25 cm

Answer: a) 10π cm

What is the value of 2^4?

a) 4

b) 8

c) 16

d) 32

Answer: c) 16

If a number is divisible by both 2 and 3, what is the smallest positive number it could be?

a) 2

b) 3

c) 6

d) 1

Answer: c) 6

Simplify the expression: 3(4 + 2) - 5.

a) 15

b) 11

c) 17

d) 18

Answer: b) 11

What is the next prime number after 19?

a) 20

b) 21

c) 23

d) 24

Answer: c) 23

If a square has a side length of 10 cm, what is its perimeter?

a) 40 cm

b) 30 cm

c) 20 cm

d) 50 cm

Answer: a) 40 cm

Solve the equation: 2x - 3 = 7.

a) x = 2

b) x = 4

c) x = 5

d) x = 10

Answer: b) x = 4

What is the value of sin(30 degrees)?

a) 0.5

b) 1

c) 0

d) 0.866

Answer: a) 0.5

If a square has an area of 25 square units, what is the length of one side?

a) 5 units

b) 6 units

c) 10 units

d) 15 units

Answer: a) 5 units

If 8x = 32, what is the value of x?

a) x = 2

b) x = 4

c) x = 6

d) x = 8

Answer: b) x = 4

What is the volume of a cube with side length 3 cm?

a) 6 cubic cm

b) 9 cubic cm

c) 18 cubic cm

d) 27 cubic cm

Answer: d) 27 cubic cm

If a right-angled triangle has one leg of length 5 and the other leg of length 12, what is the length of the hypotenuse?

a) 13

b) 10

c) 15

d) 17

Answer: a) 13

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