Two trains departing from Delhi towards Mumbai leave at 7 am and 7:30 am, traveling at speeds of 110 km/h and 145 km/h respectively. At what distance from Delhi will the two trains meet?

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Correct answer marked below

250 km

255 km

270 km

280 km

Correct

290 km

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Official Explanation

Official

In the first 30 minutes, train A covers a distance of 110 km/h * (1/2) h = 55 km. The relative speed of the second train compared to the first train is 35 km/h. To find the time it takes for the second train to cover that…

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What this question tests

What it tests

Your application of distance = rate × time to trains, boats, and commuters, including relative speed.

Common trap

Mixing units (miles per hour vs. minutes) or averaging speeds — average speed is total distance over total time.