College Math Placement Test Arithmetic 5

Question 1

What is the value of √(144/25)?

Accepted Answer

12/5

Answer

√(144/25) = √144 / √25 = 12/5.

Question 2

If 3 pounds of apples cost $4.50, how much do 7 pounds cost?

Accepted Answer

$10.50

Answer

Unit price = $4.50 ÷ 3 = $1.50/lb; 7 × $1.50 = $10.50.

Question 3

What is −(−4)²?

Accepted Answer

−16

Answer

(−4)² = 16, and then the leading negative sign gives −16.

Question 4

Which fraction is largest?

Accepted Answer

3/4

Answer

Converting to decimals: 7/10=0.70, 2/3≈0.667, 3/4=0.75, 5/7≈0.714; 0.75 is largest.

Question 5

A tank holds 120 gallons. It is currently 5/8 full. How many gallons are in the tank?

Accepted Answer

75

Answer

5/8 × 120 = 600/8 = 75 gallons.

College Math Placement Test Practice Test