Question

Maxine spent 15 hours doing her homework last week. This week she spent 18 hours doing homework. She says that she spent 120% more time doing homework this week. Is she correct? Show your work to justify your decision.

Answer 1

Answer: She is absolutely correct .

Step-by-step explanation:

Given : Maxine spent 15 hours doing her homework last week.

This week she spent 18 hours doing homework.

i.e. Previous time period = 15 hours

New time period =18 hours

Then , the percentage of time she spent more will be:-

$\dfrac{\text{New time period}}{\text{Previous time period}}\times100\\\\=\dfrac{18}{15}\times100=120\%$

Hence she is absolutely correct , She spent 120% more time doing homework this week. I

Answer 2

Yes she would be right as for how i got the answer first i started by using 15 hours as 100% then i times fifteen by 20% which gave me three hours then add three hours to fifteen and it gave me 18. so she worked 120% more than last week hoped that helped