Question

Ashley is the utilities manager at a paper mill and is watching over one of her holding tanks. It takes 4/5 of an hour to fill 1/2 of the tank. At this rate, how many holding tanks will she fill in 1 hour

A) 3/4 of a tank
B) 5/8 of a tank
C) 2/5 of a tank
D) 1 5/8 of a tank

Answer 1

To find out how many tanks Ashley will fill in 1 hour, divide 1 hour by the time it takes to fill one tank. The answer is 5/8 of a tank.

Step-by-step explanation:

To find out how many tanks Ashley will fill in 1 hour, we need to determine the time it takes to fill one tank and then divide 1 hour by that time. It takes Ashley 4/5 of an hour to fill 1/2 of the tank. So, to fill the entire tank, it will take her 4/5 ÷ 1/2 = 4/5 × 2/1 = 8/5 hours. To find how many tanks she will fill in 1 hour, we divide 1 by the time it takes to fill one tank: 1 ÷ 8/5 = 1 × 5/8 = 5/8. Therefore, she will fill 5/8 of a tank in 1 hour.