Question

martin needs to drain his swimming pool to do maintenance work on it. his pump will drain water at a rate of 75 gallons every 2 minutes. the pool is full and holds 15,000 gallons of water. how long will it take martin to drain his swimming pool? (choose 2.) a 100 minutes b 200 minutes c 400 minutes d 3 hours 20 minutes e 4 hours f 6 hours 40 minutes

Explanation:

Step1: Find the rate per minute

The pump drains 75 gallons every 2 minutes, so the rate per minute is $\frac{75}{2} = 37.5$ gallons per minute.

Step2: Calculate total time in minutes

The pool has 15,000 gallons. Time = $\frac{15000}{37.5} = 400$ minutes.

Step3: Convert 400 minutes to hours and minutes

400 minutes = 6 hours 40 minutes (since 6*60 = 360, 400 - 360 = 40).

Answer:

C. 400 minutes, F. 6 hours 40 minutes