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Quantitative Aptitude :: Time and Work - Discussion

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Choose the correct option.

X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last ?

A6 days

B10 days

C15 days

D20 days

Answer: Option (Login/Signup)

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