Question

40 men can complete a work in 48 days.If 64 men started working and after Xdays 32 more men joined the work. Ifthe remaining work is completed in 165days, then find the value of X ?​

Answer 1

Answer:

Step-by-step explanation:

40 men in 48 days==complete 1 work(assume)

40 men, in 1 day== complete 1/48 work

40 men,in 15day ==complete 15/48 work.

After 15 days,we have 22 men as 18 left(40–18),

and we have left work== 1–15/48==33/48 work

we know, 40 men efficiency ==1/48

therefore,1 men efficiency ==1/48*40

So,…………. 22 men efficiency =22/48*40

use formula,work ==efficiency of man * no. of days.

therefore,No. of days=left work /efficiency of 22 men

No. of days ==(33/48 )/(22/48*40)==60 days …………….Ans.