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Running in Circles

In a 2 kilome...

Question

In a 2 kilometre race, Vignesh beats Ranajyoti by 100 meters or 20 seconds. What time does Vignesh take to complete the race?

200 sec

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180 sec

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210 sec

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150 sec

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380 sec

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Solution

The correct option is E
380 sec

Time taken by Ranajyoti to run 2000 meters = $\frac{2000 \times 20}{100}$ = 400 sec.

Time taken by Vignesh = 400 - 20 = 380 sec.

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