Question

4. An athlete runs 200 metres race
in 24 seconds. His speed (in km/
hr) is :​

Answer 1

Answer:

Speed = 29.98km/hr

Step-by-step explanation:

Given:

Distance(d) = 200 m

Distance(d) = 200/1000 km

Distance(d) = 0.2 km

Time(t) = 24 sec

Time(t) = 24/3600

Time(t) = 0.00667

Solution:

Speed = d/t

speed = 0.2/0.00667

speed = 29.98km/hr

Answer 2

Answer: 30 km/hr

Step-by-step explanation:

Number of seconds - 24

Length that the athlete ran - 200 meters

200/24 in simplest form is 25/3

To convert m/s in km/hr we multiply it by 18/5

25/3 x 18/5 = 450/15

450/15 in simplest form is 30 km/hr

So, the answer is 30 km/hr