Junior Waec mathematics exam questions and answers

Junior waec mathematics questions and answers

Junior WAEC mathematics questions, along with options and answers:

What is the value of 7² + 4²?

A) 45

B) 49

C) 50

D) 53

Answer: B) 49

Simplify the expression: 3(2x - 4) - 2(3x + 1).

A) 2x - 14

B) 6x - 12

C) 6x - 14

D) 8x - 7

Answer: B) 6x - 12

If the perimeter of a rectangle is 24 cm, and its length is 8 cm, what is the width?

A) 3 cm

B) 6 cm

C) 8 cm

D) 12 cm

Answer: A) 3 cm

Solve for x: 2x + 5 = 17.

A) 6

B) 7

C) 8

D) 9

Answer: C) 8

If a triangle has angles of 60°, 70°, and 50°, what type of triangle is it?

A) Equilateral

B) Isosceles

C) Scalene

D) Right-angled

Answer: C) Scalene

What is the area of a square with a side length of 5 cm?

A) 10 cm²

B) 20 cm²

C) 25 cm²

D) 30 cm²

Answer: C) 25 cm²

Which of the following is a prime number?

A) 1

B) 7

C) 12

D) 15

Answer: B) 7

If the product of two consecutive even numbers is 72, what are the two numbers?

A) 6 and 12

B) 8 and 10

C) 4 and 16

D) 10 and 14

Answer: B) 8 and 10

What is the LCM (Least Common Multiple) of 6 and 8?

A) 6

B) 12

C) 24

D) 48

Answer: B) 12

If a car travels at a speed of 60 km/h for 3 hours, how far does it travel?

A) 120 km

B) 180 km

C) 240 km

D) 360 km

Answer: A) 180 km

What is the value of π (pi) to two decimal places?

A) 3.14

B) 3.141

C) 3.142

D) 3.1416

Answer: A) 3.14

If 3x + 7 = 22, what is the value of x?

A) 5

B) 6

C) 7

D) 8

Answer: A) 5

In a triangle, the sum of the angles is always equal to:

A) 90 degrees

B) 120 degrees

C) 180 degrees

D) 360 degrees

Answer: C) 180 degrees

What is the square root of 81?

A) 7

B) 8

C) 9

D) 10

Answer: C) 9

If the sum of two angles is 90 degrees, what type of angles are they?

A) Supplementary

B) Complementary

C) Vertical

D) Corresponding

Answer: B) Complementary

What is the value of 4! (4 factorial)?

A) 4

B) 12

C) 24

D) 120

Answer: C) 24

Find the missing angle in a right-angled triangle with angles of 30° and 60°.

A) 30°

B) 60°

C) 90°

D) 120°

Answer: C) 90°

If the ratio of boys to girls in a class is 3:4, and there are 21 girls, how many boys are there?

A) 9

B) 12

C) 15

D) 18

Answer: B) 12

What is the next prime number after 29?

A) 30

B) 31

C) 32

D) 33

Answer: B) 31

Solve for y: 2y - 3 = 9.

A) 3

B) 6

C) 7

D) 12

Answer: B) 6.