CAST Math 2

Question 1

A crew lays 480 feet of cable in 8 hours. At this rate, how many feet do they lay in 5 hours?

Accepted Answer

300

Answer

480 ÷ 8 = 60 feet per hour, and 60 × 5 = 300 feet.

Question 2

What is 35% of 220?

Accepted Answer

77

Answer

0.35 × 220 = 77.

Question 3

A transformer steps voltage down by a 4:1 ratio. If the input is 480 volts, what is the output?

Accepted Answer

120 volts

Answer

480 ÷ 4 = 120 volts.

Question 4

Solve for x: 3x - 7 = 20.

Accepted Answer

9

Answer

Add 7 to get 3x = 27, then divide by 3 to get x = 9.

Question 5

A tank holds 150 gallons and drains at 12.5 gallons per minute. How long until it is empty?

Accepted Answer

12 minutes

Answer

150 ÷ 12.5 = 12 minutes.

CAST Test Practice Test