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X can do a piece of work in 40 days. He...

X can do a piece of work in 40 days. He works it for 8 days and then Y finished it in 16 days How long will they together take to complete the work?

A

15 hrs

B

20 hrs

C

`13 1/2` hrs

D

12 hrs

Text Solution

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The correct Answer is:
A, B, C
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