X and Y can do a piece of work in 20 days and 12 days respectively. X started…

PYQ TCS NQT 2025

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?

  1. A.

    6 days

  2. B.

    10 days

  3. C.

    15 days

  4. D.

    20 days

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