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Question

A and B were supposed to finish a piece of work together in 30 days. They worked together for 20 days and then B left. A finished the remaining work after another 20 days.
How many days would A take to finish the job alone?


  1. 40

  2. 54

  3. 60

  4. 50

  5. 59


Solution

The correct option is C

60


(A+B)’s 20 days’ work = (130×20) = 23  

Remaining work = (123)=13

Now, 13 work is done by A in 20 days.

Whole work will be done by A in (20×3)=60 days

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