Work 5 times more in bad times | Prafull Billore | MBA CHAI WALA

Solve: 5/7 times 5/7 times 5/7 times 5/7

Suresh can finish a piece of work by himself in 42 days. Mahesh, who is 1/5 times more efficient as Suresh, requires X days to finish the work by working all by himself. Then what is the value of X ?

A work three times as fast as B.B takes 56 days more than A to complete a work. Working together in how days can they complete the work?

Statement : A friend in need is a friend indeed. Conclusions : I. All are friends in good times. II. Enemies in bad times are not friends.

Find a number such that when 5 is subtracted from 5 times the number, the result is 4 more than twice the number.

When A alone does a piece of work , he takes 16 days more than the time taken by (A+B) to complete the work, while B alone takes 9 days more than the time taken by (A + B) to finish the work. What time,AandBtogether will take to finish this work?