Question

A fish tank is half full of water. if ten gallons of water were added, the tank will be 7/8 full. What is the capacity of the of the tank in gallons?

Answer 1

(1/2)x+10=(7/8)x
4x+80=7x
3x=80
x=80/3 gallons

Answer 2

where x is the capacity of the tank

Answer 3

initially the tank was half full. on adding ten gallons the tank was 7/8 full so ten gallons equals 7/8-1/2 of the tank = 3/8
hence full tank would have the capacity of 10*8/3=80/3 gallons