Practicing Success
A person crosses a 500 m long street in 5 minutes. What is his speed in km/h? |
5 4 6 7 |
6 |
5 minutes = 5 × 60 sec = 300 sec Speed = \(\frac{Distance }{Speed }\) = \(\frac{500}{300}\) = \(\frac{5}{3}\) m/sec \(\frac{5}{3}\) m/sec = \(\frac{5}{3}\) × \(\frac{18}{5}\) km/h = 6 km/h |