Question

A rain barrel is full of water and used to water a garden. The rain barrel loses water at the rate of 2.5 gallons of water per minute. After seven minutes, the rain barrel contains 37.5 gallons.What is the total number of minutes it will take to completely empty the rain barrel? Show or explain your work

Answer 1

22 mins

Explanation:

First of all calculate the time needed to empty the water left the barrel(37.5)

; 37.5 ÷ 2.5 = 15

hence it takes 15 mins to empty the 37.5 gallons of water

;The total number of minutes required to completely empty the barrel are,

;15 + 7 = 22 mins