Question

An athlete runs 200 metres race in 24 second his speed in km/hr is ​

Answer 1

Answer:

30 km/h

Step-by-Step Explanation:

Speed = Distance/Time

= 200/24

= 25/3 m/s

To convert km/h ---> m/s,

we multiply by 5/18

To convert m/s ---> km/h,

we multiply by 18/5

So,

25/3 m/s = 25/3 * 18/5 km/h

= 25 * 6/5

= 5 * 6

= 30 km/h

Hope this helps!

Answer 2

Answer:

Step-by-step explanation:

Apply ratio method

m             km

1000         1

200          x

cross multiply these terms

x=200÷1000

x=0.2km

hrs          sec

1             3600

x              24

x=24÷3600

x=6.666666667*10-³ hrs (6.666666667 into 10 raise to the power -3)

speed =0.2÷6.666666667*10-³

           =30 km/hr