Question

A and B together can do a piece of work in 10 days. If A alone will take 12 days to finish the work how long will B take to finish the work?​

Answer 1

Answer:

It will take 60 days for B to finish the entire work.

Explanation:

A needs 12 days to do 1 part of work

A needs 1 day to finish 1/12 part of work

A & B together,

Needs 10 days to finish 1 part of work

Needs 1 day to finish 1/10 part of work

Therefore, B along can do 1/10-1/12 or 1/60 part of work.

In the case of B,

1/60 part of work can be done in 1 day

1 part of work can be done in (1×60)/1 or 60 days. (Answer)

Answer 2

Answer:

60

Step-by-step explanation:

lcm of A and B together & A alone = 60=> 60 units work

A alone finish work in 12 days => efficiency of A is 5 units per day.

so A will cover 50 units of work in 10 days

so efficiency of B is 1 unit per day

so B alone take 60 days to complete the work