Discussion
Amit covers a distance at a speed of 24 km/hr in 6 min. If he wants to cover the same distance in 8 min, what should be his speed?
Answer: A
Over a fixed distance, speed and time are inversely proportional.
\[ v_{2} = v_{1} \times \frac{t_{1}}{t_{2}} = 24 \times \frac{6}{8} = 18 \text{ km/hr} \]
More time means less speed, so the answer must be below 24 km/hr - which rules out two options immediately. The distance itself (2.4 km) is never needed.
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