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‘P’ is twice as good a workman as ‘Q’ and together they finish a piece of work in 48days. In how many days will ‘P’ alone can finish the work?
1. 68 days
2. 74 days
3. 72 days
4. 70 days

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Best answer
Correct Answer - Option 3 : 72 days

Given:

1/P + 1/Q = 1/48

Calculation:

Let time taken by P be a days and time taken by Q be 2a days.

⇒ 1/a + 1/2a = 1/48

⇒ 3/2a = 1/48

⇒ a = 72

∴ In 72 days, P alone can finish work.

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