Multiple choice

The distance between 2 stations are 800km. One train starts at 5am from A with 62 kmph. Another train starts at 7am from B at 50 kmph. When they will meet?

  1. 12.3pm

  2. 1.30pm

  3. 1.03pm

  4. 2.32pm

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Train A starts at 5am, covers 62*2 = 124km by 7am. Remaining distance = 800 - 124 = 676km. Relative speed = 62 + 50 = 112 kmph. Time to meet = 676 / 112 = 6.0357 hours. 6 hours 2 minutes approx. 7am + 6h 2m = 1:02pm.

AI explanation

From 5 am to 7 am, the first train travels for 2 hours at 62 kmph, covering a distance of 124 km and leaving 676 km between the two trains. From 7 am onwards, both trains travel towards each other, so their relative speed is 62 plus 50 equals 112 kmph. The time taken to meet is 676 divided by 112, which equals 6 hours and 3 minutes. Adding this to 7 am gives a meeting time of 1.03 pm.

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