How much time does Rani take to cover a distance of 200 m, if she runs at a speed of 15 km/h?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 48 sec.
Speed = 15 km/hr = 15 × 5/18 = 75/18 = 4.16m/sec
Time = Distance/Speed
Time taken = 200/4.16 = 48 sec