Stretch your thinking picture above

3:40 + 1:00 =4:40 + 0:30 = 5:20 + 55 = 6:15 So yes

She started working on jer art project at 3:40 pm so if she worked for an hour and a half, the time would be 5:10 pm. She takes a 55 minute break so the time would be 6:05 pm. If she works for another hour the time will be 7:05 and there will be no time left. However, if she doesn't work for another hour, she has enough time to go. This is what i think in terms of maths.

Hope i could help you.
P.s. Girls take long to get ready, just saying! :)

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