Question

Melissa got 18 out of 20 on a math quiz. Tom got 85% on the quiz. Whose mark was greater?

Answer 1

`tom = (85)/(100) * 20 \\ = 17 \: questions`

Melissa had a greater mark.

Answer 2

Melissa

Explanation:

Melissa: 18/20

Tom: 85/100

You need a common denomenater so multiply 18 and 20 by 5:

90/100>85/100

Melissa has the greater mark by 5%