23-09-2016
Mathematics

contestada

30men can finish 1/7of a work in 2days.18men will do othe remaining work in ?

Respuesta :

24-09-2016

7/7-1/7=6/7 is the rest of work
1/7 work takes 2days
6*1/7=6/7 work takes 6*2days=12days
30 men takes 12 days to finish the rest of work (6/7)
18 men takes 18*12/30= 7.2days

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