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Q42 (CAPF/2022) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Quantitative aptitude topics Answer Verified

Two friends 10 km apart start running towards each other at speeds of 10 km/hr and 14 km/hr respectively. After how much time will they meet each other?

Result
Your answer: —  Â·  Correct: B
Explanation

To find the meeting time of two objects moving towards each other, we use the concept of relative speed. When two objects move in opposite directions (towards each other), their relative speed is the sum of their individual speeds. In this scenario, the friends' speeds are 10 km/hr and 14 km/hr, resulting in a relative speed of 24 km/hr (10 + 14 = 24). The initial distance between them is 10 km. Time is calculated by dividing the total distance by the relative speed. Thus, Time = 10 km / 24 km/hr = 5/12 hours. To convert this into minutes, we multiply by 60 (since 1 hour = 60 minutes): (5/12) * 60 = 25 minutes. Therefore, the two friends will meet after exactly 25 minutes.

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