In a 1 km race, Varun takes 3 minutes more than Gautam and 1 minute less than Tarun. If Gautam runs at a speed of 10 km/h in 1 km race, what is Tarun's speed?
Explanation:
Gautam covers 1 km at a speed of 10 km/h.
So, he takes 6 minutes to cover the distance.
Varun will take (6 + 3), i.e. 9 minutes and Tarun will take 9 + 1 = 10 minutes to cover the same distance.
∴ Tarun's speed is 1/(10/60) km/h = 6 km/h.
Hence, option (d).
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