Question

on tuesday only sent one quarter hour working on her science fair project Ben worked three times as long on his science fair project as Lily did how much time did Ben spend on his science fair project

Answer 1

THE ANSWER IS B

Explanation:

Answer 2

Since Lily only worked one quarter hour that is only 15 minutes and 15 times 3 is 45.  So Ben worked 45 minutes on his science fair project and Lily only worked 15 minutes.