MASS Mathematical Usage 3

Question 1

The ratio of boys to girls in a class is 3:5. If there are 24 students total, how many are girls?

Accepted Answer

15

Answer

Total parts = 8; each part = 3 students, so girls = 5 × 3 = 15.

Question 2

What is 3/8 expressed as a decimal?

Accepted Answer

0.375

Answer

3 ÷ 8 = 0.375.

Question 3

A worker earns $18 per hour and works 35 hours. What are the weekly earnings?

Accepted Answer

$630

Answer

18 × 35 = $630.

Question 4

What is the perimeter of a square with a side length of 9 inches?

Accepted Answer

36 inches

Answer

Perimeter = 4 × side = 4 × 9 = 36 inches.

Question 5

If 5 pencils cost $2.00, how much do 8 pencils cost?

Accepted Answer

$3.20

Answer

Each pencil costs $0.40, so 8 × $0.40 = $3.20.

MASS Test Practice Test