X cm complete a certain work in same time in which Y and Z together can do it. If X and Y together can finish it in 10 days and Z alone in 15 days, then Y alone can do it in ?

Question

X cm complete a certain work in same time in which Y and Z together can do it. If X and Y together  can finish it in 10 days and Z alone in 15 days, then Y alone can do it in ?

Accepted Answer

সঠিক উত্তর: 60 days। ব্যাখ্যা:

X cm complete a certain work in same time in which Y and Z together can do it. If X and Y together can finish it in 10 days and Z alone in 15 days, then Y alone can do it in ?

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