Question

It took Mike 1/3 hour to mow 1/4 of a yard. How long will it take him to finish the entire yard?

Answer 1

4/3 of an hour, or 1.33 hours

Explanation:

It took Mike 1/3 of an hour to mow 1/4 of the yard. This means when it has been 1 full hour, he would have mowed 3/4 of the yard, because
`(1)/(3) *3=1` hour. Because of this, we can multiply 1/3 by 4, because he has to mow 4 parts of his lawn, and he can do 1 part in 1/3 of an hour.

`(1)/(3) *(4)/(4) =4/3` hours