Question 32

Panu, Jiban and Jalil can complete a certain task individually in 30, 20 and 60 days, respectively. Jiban started work on the task and Panu and Jalil agreed to help Jiban on every third day. How many days will it take to complete the task?

Solution

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after every 3 day 12 unit work was done
hence total day taken =$$\ \frac{\ 60}{12}\times\ 3$$=15

Hence option 'D' is correct.

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