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Question
In a 500 m race the ratio of the speeds of two contestants Ajmal and Badal is 3:4 . If Ajmal has a head start of 140 km then Ajmal wins by-
10m
20m
30m
60m
None of these
ANSWER : 4
Descrption
<p>To reach the winning post Ajmal will have to cover a distance of (500 - 140)m = 360 m.</p> <p>While Ajmal covers 3 m, Badal covers 4 m.</p> <p>While Ajmal covers 360 m, Badal covers (4/3×360)m = 480 m.</p> <p>Thus, when Ajmal reaches the winning post, Badal covers 480 m and therefore remains 20 m behind.</p> <p>∴ Ajmal wins by 20 m. (ans)</p>
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