Question

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

Answer 1

the answer of this question image zero point 16 km per hour

Answer 2

Answer:

Hii..

$.$

___________________________________

Correct Question:-

A person crosses the street 600m long in 5 minutes. What's his speed in km/h?

---------------------------------------------------------

ANSWER:-

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.

------------------------------------------------------

you can choose my first answer for clear explanation. Or, if you want to write answer in notes you can write step by step as my second answer.

____________________________________

Hope it helps you dear!