How many minutes does Siddharth take to cover a distance of 500 m, if he runs at a speed of 15 km/hr?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 2 min.
Time = distance ÷ speed, with both in the same units. The distance is in metres and the time is wanted in minutes, so the speed is first written in metres per minute.
15 km/h means 15000 m in 60 minutes, that is, 250 m per minute
Time for 500 m \(\displaystyle =\frac{500}{250}=2\) minutes