Two trains from Lucknow leave for Delhi at 11 A.M. and 11:15 A.M. and travel at 152 km/h and 171 km/h respectively. How many kilometers from Lucknow will the two trains meet?
Correct Answer: Option A
Distance covered by first train in 15minutes. = (15/60) × 152 = 38km
The train that leaves at 11 A.M. would be 38 km ahead of the other train when it starts the journey.
Also,
⇒ Relative speed = (171 - 152) km/h = 19 km/h,
∴ The distance from Lucknow would be:
= (38/19) × 171
= 342 km.
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