Question 98
A person P is travelling at 72 kmph while is travelling at 25 meters per second. What is the difference in their speeds in meters per second?
Solution
person speed in first case in meter \second is = 72$$\times$$5\18 = 20 m\sec
and given that in second case the person speed is = 25 m\sec
so the difference is = 25 - 20 = 5 m\sec Answer
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