Question

Wastewater is filling barrels at the rate of 11 quarts per hour. The recycling facility picks up 120 full barrels on each trip, and each barrel holds 12 quarts of wastewater. How many days are between each pickup? Show your work to receive full credit.

Answer 1

11×24=quarts per day. That's 264.
264/12=full barrels per day. That's 22.
120/22=frequency of pick ups. That's 5.45. So the barrels get picked up every 5 and a half days.

Answer 2

11qts/hr x 24 hrs =264 qts/day
120 barrels x 12 qts/barrel = 1440 qts
1440 qts / 264 qts/day = 5.45 days between each pickup.