Respuesta :

emelynkoh

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