Multiple choice

A man walking at the rate of 4 kmph to cover certain distance in 2 hr 45 min. Running at a speed of 16.5 kmph the man will cover the same distance in what time?

  1. 40 min

  2. 43 min

  3. 45 min

  4. 39 min

  5. 42 min

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Distance = 4 × (2 + 45/60) = 4 × 2.75 = 11 km. Time = 11/16.5 = 0.666... hours = 40 min. Check: 16.5 kmph means 16.5/60 = 0.275 km/min, so 11/0.275 = 40 min exactly.