Multiple choice

A super fast bus of KSRTC starting from ‘Trivandrum’ and reaches ‘Attingal’ in 45 minutes with an average speed of 40 km/hr. If the speed is increased by 10 km/hr how much time it will take to cover the same distance?

  1. 34 minutes

  2. 36 minutes

  3. 38 minutes

  4. 40 minutes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

With increased speed of 50 km/hr, the bus takes 36 minutes. Distance = Speed × Time = 40 × (45/60) = 30 km. New time = Distance/Speed = 30/50 = 0.6 hours = 36 minutes. When speed increases by 10 km/hr, time decreases proportionally.

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