Question

Q.4. A can do a piece of work in 7 days of 9 hours
each and B can do it in 6 days of 7 bours each. How
long will they take to do it, working together 8 hours
a day?
​

Answer 1

Answer:

A can dothe work in 7 days of 9 hours each, A can do thework in 7*9 = 63 hours. Thus, in 1 hour, A does 1/63 units of work. Since B can do the work in 6 days of 7 hours each, B can do the work in 6*7 = 42 hours.

Answer 2

Explanation:

www.vivo ipl.com...........