Question

4 men and 6 boys can finish a piece of work in 5 days, while 3 men and 4 boys can finish it on 7 days. Find the time taken by 1 man alone or that by 1 boy alone

Answer 1

Answer:

4m+6b/3m+4b = 7/5

2om+3ob=21m +28b

Im=2b (Here m=men, b = boys)

4m+6b=.7m

7m.... 5 days

Im....x

x = 35 days, I man can complete the workin35 days

IIlly. 4m+6 b = 14b

14b.....5 days

Ib........xdays

x = 70 days

I boy Cancomplete the workin7 days

man35 days and boy70 days are ans-