Free ACT Practice Question

Question 1 of 1
ID: ACT-M-63
Section: Math
Topics: Integrating Essential Skills; Word Problems
Difficulty level: Challenging

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A freezer has a powerful ice forming system; it can form 2 inches of ice in every 40 minutes. The freezer was kept operational for 4 hours and after that it was switched off for 2 hours. Once switched off, the ice melts at the rate of 0.5 inches per hour. The freezer was again switched on for 2 hours. What is the total thickness of ice now?

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