Multiple choice

A certain distance is covered in 2 hours and 45 minutes at a speed of 4 km/hr. How much time will be taken to cover the same distance at a speed of 16.5 km/hr?

  1. 40 min

  2. 41 min

  3. 45 min

  4. 90 min

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

Distance = Speed * Time. Time = 2 hours 45 minutes = 2.75 hours. Distance = 4 * 2.75 = 11 km. New time = 11 / 16.5 = 2/3 hours = 40 minutes.

AI explanation

The total time of 2 hours and 45 minutes converts to 2.75 hours, making the total distance equal to 4 km/hr multiplied by 2.75 hours, which is 11 km. Using the same distance formula, the new time required is 11 km divided by 16.5 km/hr, resulting in 2/3 of an hour. Since 2/3 of an hour equals 40 minutes, the required time is 40 minutes.