A fuel tank is 50% full. If 8 gallons of fuel is removed, then the tank remains 10% full. What is the capacity of the tank in gallons?

A fuel tank is 50% full. If 8 gallons of fuel is removed, then the tank remains 10% full. What is the capacity of the tank in gallons?

A 15

B 20

C 25

D 30

Solution

Correct Answer: Option B

(50 - 10)% = 40% means 8 gallons of fuel

1% means 8/40 gallons of fuel

100% means 8*100/40 gallons of fuel

= 20 gallons of fuel