Question

Amy knits 1/10 of a scarf in 4/5 of an hour. What fraction of scarf can Amy knit in 1 hour

Answer 1

Amy can knit
`(1)/(8)` of a scarf in 1 hour.

Explanation:

This question can be solved by proportions, using a rule of three.

We have that:

1/10 of a scarf - 4/5 of an hour

x of a scarf - 1 hours.

Applying cross multiplication:

`(4x)/(5) = (1)/(10)`

`x = (5)/(10*4) = (5)/(40) = (1)/(8)`

Amy can knit
`(1)/(8)` of a scarf in 1 hour.