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A bullet train travels at a speed of 365 km/h. In August 2001, Singapore's national record for the men's 100m sprint was set at 10.37 seconds. How many times is a bullet train as fast as the fastest Singaporean sprinter?

a. 1.16 times
b. 2.16 times
c. 3.52 times
d. 4.51 times

User Blid
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1 Answer

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Final answer:

The speed of the bullet train at 365 km/h is approximately 10.51 times faster than the Singaporean sprinter's speed of 34.722 km/h. The given multiple-choice options do not match this calculated value.

Step-by-step explanation:

The question asks us to compare the speed of a bullet train traveling at 365 km/h with the speed of the fastest Singaporean sprinter's national record for the men's 100m sprint set at 10.37 seconds. To solve this, we need to calculate the sprinter's speed and then compare it to the bullet train's speed.

Firstly, we convert the sprinter's time to hours to match the units of the train's speed:

  • Sprinter's time = 10.37 seconds = 10.37 / 3600 hours

Next, we need the sprinter's distance in kilometers:

  • Distance = 100 meters = 0.1 kilometers

Now, we can calculate the sprinter's speed:

  • Speed = Distance / Time = 0.1 km / (10.37 / 3600) hours

We then compute the speed:

  • Speed = 0.1 km / (0.00288 hours) = 34.722 km/h approximately

Lastly, to find how many times faster the bullet train is compared to the sprinter, we divide the bullet train's speed by the sprinter's speed:

  • Factor = Bullet train speed / Sprinter's speed
  • Factor = 365 km/h / 34.722 km/h = 10.51 times approximately

None of the given options (a to d) matches the calculated value. Therefore, it seems there might be a discrepancy in the given multiple-choice options compared to the calculated value.

User Voytez
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