Question

if 15 men working 8 hour a day remake a road in 63 days, how long will 45 men working 7 hour a day take to finish the road?​

Answer 1

Answer:

Total work will remain same in both the situations. Let's say the number of days taken by 45 men is 'x'.  

Therefore,  

25*8*63 = 45*7*x  

25*8*63/45*7 = x  

x = 5*8  

= 40  

Hence 45 men working 7 hours a day will take 40 days to complete the work.

Hope it helps you! :D