Question

you have a large container of olive oil. You have used 22 1/2 quarts of oil. Twenty-five percent of the olive oil remains. How many quarts of olive oil remain?

Answer 1

we are given that

You have a large container of olive oil. You have used
`22 (1)/(2)` quarts of oil.

Twenty-five percent of the olive oil remains.

we have been asked to find how many quarts of olive oil remain?

Let there were x quarts of olive oil.

It mean , we can write

`x-22 (1)/(2)=(1)/(4)*x`

`x-(1)/(4)*x=22 (1)/(2)`

`(3x)/(4)=22 (1)/(2)`

`3x=4*22 (1)/(2)`

`x=(4)/(3)* (45)/(2)`

`x=30`

Hence quarts of olive oil remain
`=30-(45)/(2)=(15)/(2)=7(1)/(2)`