Multiple choice

A cyclist covers a certain distance at a speed of 5 km/hr in 3 hours and 12 minutes. If he were moving at a speed of 20 km/hr, then in how many minutes would he cover the same distance?

  1. 48

  2. 50

  3. 42

  4. 52

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Distance = 5 km/hr * (3 + 12/60) hours = 5 * 3.2 = 16 km. Time at 20 km/hr = 16 / 20 = 0.8 hours. 0.8 * 60 = 48 minutes.

AI explanation

First, find the total distance covered using the formula distance = speed * time. The time of 3 hours and 12 minutes converts to 3.2 hours, making the distance 5 km/hr * 3.2 hr = 16 km. At the new speed of 20 km/hr, the time required is distance / speed = 16 / 20 = 0.8 hours. Converting this to minutes gives 0.8 * 60 = 48 minutes. The cyclist would cover the same distance in 48 minutes.

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