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A, B and C can complete a piece of work ...

A, B and C can complete a piece of work in 15, 30 and 40 days respectively. They started the work together and A left 2 days before the completion of the work and B left 4 days before the completion of the work. In how many days was the work completed?

A

`7(3)/(10)`

B

`10(2)/(5)`

C

`10(7)/(30)`

D

none of these

Text Solution

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The correct Answer is:
B
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