Question

(04.04)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

She is incorrect because if she did 120% more time it would have doubled 15 + 20% of 15. The correct answer of how much more she would've done would be 20%. Hope this helps!!