Question

In a kilometer race, A beats B by 50 meters or 10 seconds. What time does A take to complete the race?
A. 200 sec B. 190 sec C. 210 sec D. 150 sec​

Answer 1

Time taken by B run 1000 meters = (1000 × 10)/50 = 200 sec.


Time taken by A = 200 - 10 = 190 sec

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Correct Option : B
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Answer 2

☑Here is your answer ⤵

Let in x seconds A won the race for one metre travels for x/1000 seconds, in x seconds B also completes the race for one metre travels for x/950 seconds, but A wins the race by leading 10 seconds than B or in terms of distance it is 50 metres so (x/950)-(x/1000)=1/10 on solvation x is 190 seconds so A completes the race in 3 minutes and 10 seconds which is 190 seconds.

So, option B is the right answer....

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