An athlete runs 200 metres race in 24 seconds. His speed (in km/hr) is :
An athlete runs 200 metres race in 24 seconds. His speed (in km/hr) is :
1). 20
2). 24
3). 28.5
4). 30
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3 answers
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option 4 is the correct answer as per the answer key
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Answered by
Guest on
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Speed=$\frac{distance}{time}$
=$\frac{200}{24}$ m/s
=$\frac{200}{24}$ m/s = $\frac{200}{24}\times\frac{18}{5}$
=30 km/hrs
Answered by
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Speed =$\frac{Distance}{time}$
$\frac{200}{24}\times\frac{18}{5}$
= 30 km/h