Question

'A' can complete a piece of work in 12 days. 'A'
and 'B' together can complete the same piece
of work in 8 days. In how many days can 'B'
alone complete the same piece of work ?
(1) 15 days
(2) 18 days
(3) 24 days
(4) 28 days​

Answer 1

Answer:

Here's ur answer

Step-by-step explanation:

Option (3) 24 days

Answer 2

Please see the attachment for under it.

*Answer:

A——12

B—-?

A+B——8

lcm is total work iln number of ulnits

hence LCM of (12,8)=24

One day work in units of A is 2 unit

One day work in units of B is (LCM/NO of units)

One day work in units of A+B=24/8=3

hence one day work of B is 1 unit

B can do total work in LCM/1=24

B can alone complete the same piece of work in 24 days.

Hence your third option is correct.

iii) 24 days.

Hope you like it.