Question

On a test, Matilda answered 12 out of the first 15 problems correctly. If this rate continues, how many of the next 25 problems will she answer correctly?

Answer 1

Matilda gets `20` of the problems right.

Explanation:

Matilda answered `12` of the `15` problems or a ratio of `12/15`. This gives

`12/15 = 0.8 * 100% = 80%`

If she gets `80%` of the next set of `25` questions right

`25 * 0.8 = 20`

She will get `20` problems correct.