In a kilometer race between A and B, A wins by 60 m or 12 seconds. How long does A take to finish the race?
Correct Answer: Description for Correct answer:
A wins by 60 m or 12 seconds.
If B starts 12 seconds before A, A and B will finish the race at the same time.
if B starts 60 m ahead of A, A and B will finish the race at the same time.
This means B takes 12 seconds to run 60 m.
Therefore, B runs at \( \Large \frac{60}{12} \) = \( \Large 5 m/seconds \) \( \Large 5 m/sec, \)
Hence, B will take \( \Large \frac{1000}{5} \) = 200 seconds to complete the race.
As A wins by 12 seconds, A will take 12 seconds lesser to complete the race.
Thus A will complete the race in 200 - 12 = 188 seconds.
Part of solved Time and Distance questions and answers :
>> Aptitude >> Time and Distance