Question

Nadine saw that there was 4/5 of a pie left after their family picnic. Each slice of pie was 1/15 of the total pie. How many slices of pie are left?

Answer 1

Given:

4/5 of a pie left after their family picnic.

Each slice of pie was 1/15 of the total pie.

To find:

The number of remaining slices of pie.

Solution:

Let x be the number of remaining slices of pie.

Part of total pie in one slice =
`(1)/(15)`

Remaining part of total pie in x slices =
`(1)/(15)x`

According to the question, 4/5 of a pie left after their family picnic.

`(1)/(15)x=(4)/(5)`

Using cross multiplication, we get

`5* x=15* 4`

`5x=60`

Divide both sides by 5.

`x=12`

Therefore, the remaining number of slices of pie is 12.