Question

rohit can do piece of work in 60 days find his 1 day work abir can do same work in 90 day how long it will take to complete same work if they work together​

Answer 1

Answer:

Let, B can do the work in x days

∴ Part of work B can do in a day = 1/x

A can do a piece of work in 60 days

∴ Part of work A can do in a day = 1/60

He works alone for 12 days and then B finished it in 24 days

∴ 12/60 + 24/x = 1

∴ 24/x = 1 – (1/5)

⇒ 24/x = 4/5

⇒ 1/x = 1/30

Part of work together they can do the work in a day

= 3/60

= 1/20

∴ They can do the work together in 20 days

Answer 2

Step-by-step explanation:

rohit can do piece of work in 60 days find his 1 day work abir can do same work in 90 day how long it will take to complete same work if they work together