Question

A swimming pool holds 18,000 gallons of water. The pool is 40% full. How many more gallons are needed to fill the pool?

Answer 1

Since 40% of 18,000 gallons is 7,200 gallons filled up, then 18,000-7,200 gallons= 10,800 gallons left to fill up the pool

Explanation:

40% of 18,000 gallons means

40 x 180= 7,200 gallons

18,000-7,200 gallons= 10,800 gallons