Question

A person crosses 600m long in min then what is speed in km/hr

Answer 1

Heya Friend,

Given, Distance = 600m and Time = 1 minute = 60 seconds.

-> From above we get speed =

10 m/s.

Now we know, 1 Hour = 3600 seconds.

-> We have, Speed = 10 x 18/5 = 36km/hr.

Hope it helps...

Answer 2

Answer:

Hii..!

$.$

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There are 60 minutes in an hour. Whatever distance a person crosses in 5 mins, he/she can cross 12 times that distance in 1 hour. So, in one hour the person could have crossed 12 X 600 = 7200 meters.

But, 1000 meters equal one kilometer. So, 7200m = 7.2 km. Thus, this person travels 7.2 km in one hour, and hence has a speed of 7.2 km/hr.

[ OR ]

distance = 600m = 3/5 km

time = 5 minutes ——→ 5/60 = 1/12 hour

speed = distance / time = (3/5)/(1/12) = 36/5

→ 7.2 km/hr

speed = 7.2 km/hr.

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You can refer my first answer for clear explanation.. Or, if you want to write answer in notes you can write steps as I wrote in second answer.

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Hope it helps you dear!