Multiple choice

P and Q starting simultaneously from two different places proceed towards each other at a speed of 20 km/hr. and 30 km/hr. respectively. By the time they meet after each other. Q has covered 72 km more than that of P. The distance (in km.) between the two places is

  1. 360 km

  2. 270 km

  3. 240 km

  4. 210 km
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Let time to meet be t hours. Distance by P = 20t, by Q = 30t. Given: 30t - 20t = 72, so 10t = 72, giving t = 7.2 hours. Total distance = 20t + 30t = 50t = 50 × 7.2 = 360 km. Option A is correct.

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