# An aircraft uses 1680 gallons of fuel, the left tank uses 45% the right tank uses 32.5%, how much was used by the center tank?

May 17, 2018

22.5% or 378 gallons

#### Explanation:

45%+32.5%=77.5%

100%-77.5%=22.5%

$\frac{22.5}{100} \times 1680$

$= 378$ gallons