Question

A 55-gallon barrel was filled to the brim and was left out in the open. 12% of the water was lost after three days of evaporation. Find the volume of water in the barrel after three days.

Answer 1

Total amount=55 gallon
Loss of water=12%
Using formula,used/total*100
=12/55*100
=12/11*20
=12*20/11
=240/11
=21.81
Thus, 21 gallon of water was lost
And volume of water after 3 days=55-21.81=33.19