Question

Alex made 3/5 of a batch of cookies in 3/10 of an hour. How much time will it take him to make 1 full batch of cookies?

Answer 1

`(1)/(2)`h

Explanation:

Let the total batch of cookies be x.

`(3)/(5)`x =
`(3)/(10)`h

`(5)/(5)`x =
`(5)/(3)` ×
`(3)/(10)`h

x =
`(15)/(30)`h

x =
`(1)/(2)`h