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)

3.48

15 minutes 30 seconds = 15 × 60 + 30 = 930 seconds

We know,

Speed = \(\frac{900}{930}\) m/sec

To convert m/sec into km/h

X m/sec × \(\frac{18}{5}\) = y km/h

=  \(\frac{900}{930}\) × \(\frac{18}{5}\)

= 3.48 km/h