Question

A fast food restaurant sells two sizes of fries, small and large. On friday they sold 81 fries total. If 9 of the fries were small, what is the ratio of large fries sold to small fries sold?

Answer 1

72:9

Explanation:

Answer 2

The ratio of large fries sold to small fries sold is
`8`

Explanation:

Let

x------> the number of large fries sold

y-----> the number of small fries sold

we know that

`x+y=81` ------> equation A

`y=9\ small\ fries\ sold` -----> equation B

Substitute equation B in equation A

`x+9=81`

`x=81-9=72\ large\ fries\ sold`

Find the ratio

`(x)/(y)=(72)/(9)=8`