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A man crosses a road 250 metres wide in 75 seconds. His speed in km/hr is :
Answer & Solution
Correct Answer:
Option
B
$$\eqalign{
& S = \frac{D}{T} = \frac{{250}}{{75}}{\text{ m/sec}} \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{ = }}\frac{{250}}{{75}} \times \frac{{18}}{5} \cr
& \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = 12{\text{ km/hr}} \cr} $$
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