Ram took 15 minutes 30 seconds to reach his friend's house which is 900 meters away. The speed of Ram (in km/h) is (correct to two decimal places)
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 3.48
Speed = distance ÷ time; to get km/h, the distance is taken in kilometres and the time in hours.
Distance: 900 m \(=0.9\) km
Time: 15 min 30 s \(=15.5\) min \(=\displaystyle\frac{15.5}{60}\) h
Speed: \(0.9\times\displaystyle\frac{60}{15.5}=\frac{54}{15.5}=3.483\ldots\approx3.48\) km/h