Question
An athlete runs 200 metres race in 24 seconds. What is his speed?
An athlete runs 200 metres race in 24 seconds. What is his speed?
Answer: Option D
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Answer : Option D
Explanation :
$MF#%\text{Speed} = \dfrac{\text{Distance}}{\text{Time}} = \dfrac{200}{24}\text{ m/s} = \dfrac{200}{24}\times \dfrac{18}{5}\text{ km/hr}\\
= \dfrac{40 \times 3}{4}\text{ km/hr} = 10 \times 3\text{ km/hr} = 30\text{ km/hr}$MF#%
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