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Question

A and B can do a piece of work in 5 days, B and C can do it in 7 days. A and C can do it in 4 days. Who among these will take the least time if put to do it alone ?
  1. A
  2. B
  3. C
  4. Data inadequate

A
C
B
B
C
A
D
Data inadequate
Solution
Verified by Toppr

LettheworkbeW.
AandBcandoapieceofworkin5days5A+5B=W..........(1)

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