Question
Michael's boxing class usually lasts 1 h 10 min. However, last Tuesday, Michael's class lasted 5 min longer than usual. The class started 7 min late. As such, Michael's class ended at 4.31 p.m. instead of the usual time. What time does Michael's boxing class usually start? (Leave your answer in 24-hour clock format.)
4 m

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Michael's boxing class usually lasts 1 h 10 min. However, last Tuesday, Michael's class lasted 5 min longer than usual. The class started 7 min late. As such, Michael's class ended at 4.31 p.m. instead of the usual time. What time does Michael's boxing class usually start? (Leave your answer in 24-hour clock format.)