A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour

Answer: Option B

Explanation:

Speed = 600 m/sec.
5 x 60

= 2 m/sec.

Converting m/sec to km/hr (see important formulas section)

= 2 x 18 km/hr
5

= 7.2 km/hr.

The Speed is 7.2 KM Per Hour.