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X alone can complete a piece of work in 40 days. He worked for 8 days and left. Y alone completed the remaining work in 16 days. How long would X and Y together take to complete the work?

A

`13(1)/(3)` days

B

14 days

C

15 days

D

`16(2)/(3)` days

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The correct Answer is:
A
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