Question

Stan lawn mower had 1/8 of a gallon of gasoline in the tank. Stan started mowing and used all of the gasoline. He put 6/10 of a gallon of gasoline in the tank. After he mowed 1/4 of a gallon was left in the tank. What was the total amount of gasoline stan used?

Answer 1

Answer: Stan used
`(1)/(24)\ gallon` of gasoline.

Explanation:

Given: The amount of gasoline in the tank of Stan lawn mower=
`(1)/(8)\ of\ gallon`

Then he put the amount of gasoline in the tank=
`(1)/(6)\ of\ gallon`

The total amount of gasoline filled in the tank =
`(1)/(8)+(1)/(6)\ gallons`

⇒ The total amount of gasoline filled in the tank =
`(3+4)/(24)=(7)/(24)\ gallons`

The amount of gasoline left in the tank after mowing=
`(1)/(4)\ of\ gallon`

Now, the total gasoline used by Stan=
`(7)/(24)-(1)/(4)=(7-6)/(24)=(1)/(24)\ gallon`