A and B working together, can do a piece of work in 4 1/2 hours. B and C working together can do it in 3 hours. C and A working together can do it in 2 1/4 hours. All of them begin the work at the same time. Find how much time they will take to finish the piece of work?

IBPS Clerk Mains 2016 Paper

Question : 31 of 200

Marks: +1, -0

A and B working together, can do a piece of work in 4

hours.
B and C working together can do it in 3 hours.
C and A working together can do it in 2

hours. All of them begin the work at the same time. Find how much time they will take to finish the piece of work?

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