Question

A can do a piece of work in 4hours . B and C can do it togather in 3hours , while A and C can do it in 2 hours. how long will B alone take to do it​

Answer 1

13 hours

Step-by-step explanation:

A can do a piece of work in 4 hours, B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it? Hence B alone can do the work in 12 hours, so option [D] is correct answer.

Answer 2

Answer:

A can do a piece of work in 4 hours, B and C can do it in 3 hours. A and C can do it in 2 hours. How long will B alone take to do it? Hence B alone can do the work in 12 hours, so option [D] is correct answer.

Step-by-step explanation: