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SSC Selection Post 2024 PYQ — Question 61

SSC Selection Post - Matriculation Level - 21 June 2024 - Shift 4 • Quantitative Aptitude • Q61

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A boat covers a distance of 72 km downstream in 6 hours, while it takes 12 hours to cover the same distance upstream. What is the speed of the boat?

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Correct answer: D

Explanation

The correct answer is Option 4 i.e. 9 km/h.

Downstream speed = 72672\over6 = 12 km/hr

Upstream speed = 721272\over12 = 6 km/hr

Speed of the boat = 12+6212+6 \over2 = 18218\over2 = 9 km/hr