Diana worked on her science project for 5 1/3 hours. gabe worked on his science project 1 1/4 times as long as diana. paula worked on her science project 3/4 times as long as diana

Time taken by Diana to finish her project is 5 1/3 hours
Gabe took 1 1/4 times as long as Diana, therefore Gabes time will be:
1 1/4 × 5 1/3
=5/4 × 16/3
=20/3
=6 2/3 hours

Paula took 3/4 times as long as Diana, therefore time taken by Paula will be:
3/4 × 16/3
=4 hours

It’s 24.6 after you round to the nearest tenths the answer should be 25.0