1 . A can do a piece of work in 24 days, B in 32 days and C in 64 days. All begin to do it together, but A leaves after 6 days and B leaves 6 days before the completion of the work. How many days did the work last?
- A. 20
- B.
- C.
- D.
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Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021
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