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Two friends cover a certain distance with 8 km/hr and 10 km/hr. The faster one reaches the destination 15 minutes before the slower one.Find the distance covered to reach the destination.1. 15 km2. 10 km3. 12 km4. 20 km |
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Answer» Correct Answer - Option 2 : 10 km Given: The speed of two friends are 8km/hr and 10 km/hr Person with the speed of 10 km/hr reaches 15 minutes earlier Concept used: Speed = Distance/Time Detailed solution: Let the distance be D According to question, (D/8) - (D/10) = 1/4 ⇒ D/40 = 1/4 ⇒ D = 10 ∴ Distance covered to reach the destination is 10 km |
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