[7.2 km/hr] A person crosses a 600 meter long street in 5 minutes. What is the speed in Km/hr

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Aptitude

TNPSC G4

10th CBSE Maths

A person crosses a 600 meter long street in 5 minutes. What is the speed in Km/hr

6.2 km/hr

7.2 km/hr

8.2 km/hr

9.2 km/hr

Explanation:
Two things to give attention on this question.
First time is in minutes, we need to change it to seconds to get speed in m/sec, then we need to get the final answer in km/hr.
So lets solve this.

Speed=Distance/Time
Distance=650meter
Time=5 minutes=300sec
Speed=600/300
=2m/sec
=>2∗18/5km/hr
=7.2km/hr

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