If a man walks at 6 kmph, he can reach his destination at 9:00 am. However, he walks a little slower and reaches only at 10:00 am. If the distance to his destination was 12 km, at what speed did he walk?
Correct answer: B. 4 kmph
- A. 5 kmph
- B. 4 kmph
- C. 4.5 kmph
- D. 3 kmph
Explanation
At 6 kmph, the 12 km journey takes 12/6 = 2 hours, so leaving at 7:00 am leads to a 9:00 am arrival. Reaching at 10:00 am means the journey took 3 hours, and the speed was 12 km ÷ 3 hours = 4 kmph. The likely choice is a, 5 kmph, from dividing the distance by the wrong time interval.
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