Q: How long does it take Puja to sprint 500 metres at a speed of 30 kilometres per hour?
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A
60 sec
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B
82 sec
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C
95 sec
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D
100 sec
A
Answer:
A
Explanation:
To solve this problem, you can use the formula "distance = speed * time" to find the time it takes for the car to travel 500 meters at a speed of 30 km/hr.
First, you need to convert the speed from km/hr to m/s. You can do this by multiplying the speed by 1000 and dividing by 3600. This gives us: 30 km/hr = 30 * 1000 / 3600 = 8.333 m/s.
Next, you can plug the values into the formula to find the time it takes for the car to travel 500 meters:
time = 500 m / 8.333 m/s = 60 seconds.
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