Question : A person covers a distance of 7.5 km at a speed of 25 m/s. What is the time taken by the person to cover the mentioned distance?
Option 1: 6 min
Option 2: 7.5 min
Option 3: 5 min
Option 4: 8 min
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Correct Answer: 5 min
Solution : Distance = 7.5 km = 7500 m Speed = 25 m/s Time = $\frac{\text{distance}}{\text{speed}}$ = $\frac{7500}{25}$ = 300 s = $\frac{300}{60}$ min = 5 min Hence, the correct answer is 5 min.
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