Question

60 men can complete a piece of work in 40 days.60 men start the work but after every 5 days 5 people leave.In how many days will the work be completed? A) 60 b) 80 c) 120 d) none of these

Answer 1

Step-by-step explanation:

(60*40) men complete the work in 1 day

1man's 1 day work is 1/60*40

60 men's 5 day work is 5*(1/40)=1/8

remaining work (1-1/8)=7/8

as 5 men leave

55 men's 1 day work=55*(1/60*40)=11/60*8

now

11/60*8 work done by them 1day

7/8 work done by them [(60*8)/11]*(7/8)=420/11=38.18

so they complete in (38.18+5) days{5 day added bcoz alrdy 5dy work had been done}

43.18 day total work will be completed.

Answer 2

Answer:

It is the rate of 40 em completed the work even after 7 days and the work may due completed!!!!