Answer:
3+2=5
5u =12
1u=2.4
2u=4.8
3u=7.2
7.2 hour = 7 hours 12 min
4.8 hour = 4 hours 48 min
assuming first person work longer than the other
so first person worked 7 hours 12 min and second person worked 4 hours 48 min
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