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A and B race

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by harsh.champ » Tue Feb 09, 2010 5:30 am
If A and B run a race, then A wins by 60 seconds. If B and C run the same race, then B wins by 30
seconds. Assuming that C maintains a uniform speed what is the time taken by C to finish the
race?


A. A and C run the same race and A wins by 375 metres.
B. The length of the race is 1 km
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by shashank.ism » Tue Feb 09, 2010 6:35 am
harsh.champ wrote:If A and B run a race, then A wins by 60 seconds. If B and C run the same race, then B wins by 30
seconds. Assuming that C maintains a uniform speed what is the time taken by C to finish the
race?


A. A and C run the same race and A wins by 375 metres.
B. The length of the race is 1 km
A. If A and C run the race, A win by 90 sec and 375 m so his speed is 4.1666 m/sec but we can't say about distance insufficient.
B. speed is not clear... so insufficient

combining A and B : A's speed is 25/6 so time taken by him to complete 1 km = 240 sec
he win by 90 sec by C
so c takes 90 +240 = 330 sec

so ans C
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