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SSC CGL 2024 PYQ — Question 65

SSC CGL - 09 Sep 2024 - Shift 1 • Quantitative Aptitude • Q65

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Fill pipe P is 21 times faster than fill pipe Q. If Q can fill a cistern in 110 minutes, find the time it takes to fill the cistern when both fill pipes are opened together.

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Correct answer: A

Explanation

The correct answer is Option 1 i.e. 5 minutes.

                           P       :         Q
Efficiency         21      :         1

Time taken to fill the tank by both pipe = 110×121+1\frac{110\times1}{21+1} = 110/22 = 5 min