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प्रश्न
A and B start from the same place, in the same direction and at the same time with speeds 6 km/h and 2 m/sec respectively. After 5 hours who will be ahead and by how much?
उत्तर
A’s speed = 6 km/h
B’s speed = 2 m/sec
Distance covered by A in 5 hours = 6 × 5 = 30 km
and distance covered by B in 5 hours = 5 × 60 × 60 × 2 m = 36000 m
= `36000/1000` = 36 km
B will be ahead and 36 – 30 = 6 km ahead.
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