A Can Do (1/3) Of A Work In 5 Days And B Can Do (2/5) Of The Work In

1.	A Can Do (1/3) Of A Work In 5 Days And B Can Do (2/5) Of The Work In 10 Days. In How Many Days Both A And B Together Can Do The Work?
Answer» 1/3 of work is DONE by A in 5 days Therefore, whole work will be done by A in 15 days 2/5 of work is done by B in 10 days Whole work will be done by B in (10 x 5/2) i.e.., 25 days Therefore (A + B)’s 1 DAY’s work = (1/15 + 1/25) = 8/75 So both together can finish 75/8 days i.e.., 9 3/8 days. 1/3 of work is done by A in 5 days Therefore, whole work will be done by A in 15 days 2/5 of work is done by B in 10 days Whole work will be done by B in (10 x 5/2) i.e.., 25 days Therefore (A + B)’s 1 day’s work = (1/15 + 1/25) = 8/75 So both together can finish 75/8 days i.e.., 9 3/8 days.

A Can Do (1/3) Of A Work In 5 Days And B Can Do (2/5) Of The Work In 10 Days. In How Many Days Both A And B Together Can Do The Work?

Answer»

1/3 of work is DONE by A in 5 days

Therefore, whole work will be done by A in 15 days

2/5 of work is done by B in 10 days

Whole work will be done by B in (10 x 5/2) i.e.., 25 days

Therefore (A + B)’s 1 DAY’s work = (1/15 + 1/25) = 8/75

So both together can finish 75/8 days i.e.., 9 3/8 days.

1/3 of work is done by A in 5 days

Therefore, whole work will be done by A in 15 days

2/5 of work is done by B in 10 days

Whole work will be done by B in (10 x 5/2) i.e.., 25 days

Therefore (A + B)’s 1 day’s work = (1/15 + 1/25) = 8/75

So both together can finish 75/8 days i.e.., 9 3/8 days.

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