A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours . What is the speed of - Quantitative Aptitude MCQ Competitive Exam 2026 | ExamTest.live

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A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours . What is the speed of the boat in still water?

Solution & Step-by-step Explanation

1. **Calculate Downstream Speed (D):** D = \frac{Distance}{Time} = \frac{16 km}{2 hours} = 8 kmph 2. **Calculate Upstream Speed (U):** U = \frac{Distance}{Time} = \frac{16 km}{4 hours} = 4 kmph 3. **Calculate Speed of the boat in still water (B):** B = \frac{D + U}{2} = \frac{8 + 4}{2} = \frac{12}{2} = 6 kmph

Try it yourself before checking the explanation above.

A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours . What is the speed of the boat in still water?

4 kmph

6 kmph

8 kmph

Data inadequate

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