Multiple choice

A car can finish a certain journey in 10 hours at a speed of 48 km/hr. In order to cover the same distance in 8 hours, the speed of the car must be increased by- एक कार एक निश्चित यात्रा 48 किमी./घं. की चाल से 10 घंटे में करती है तो उसी दूरी को 8 घण्टे में तय करने के लिए कार की चाल में कितनी वृद्धि करनी चाहिए।

  1. 6 km/hr/किमी/घंटा

  2. 60 km/hr/किमी/घंटा

  3. 12 km/hr/किमी/घंटा

  4. 15 km/hr/किमी/घंटा
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Distance = Speed × Time = 48 × 10 = 480 km. To cover 480 km in 8 hours, new speed = 480/8 = 60 km/hr. Increase needed = 60 - 48 = 12 km/hr. Option B (60) is the new speed, not the increase — that's the trap.

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