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A hare and a jackal

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A hare and a jackal

by gmatblood » Sat Oct 29, 2011 12:16 pm
A hare and a jackal are running a race. Three leaps of the hare are equal to four leaps of the jackal. For every six leaps of the hare, the jackal takes 5 leaps. Find the ratio of their speeds.

A. 64:25
B. 8:5
C. 5:8
D. 25:64
E. None
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by rijul007 » Sat Oct 29, 2011 1:19 pm
Option B
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by user123321 » Sat Oct 29, 2011 4:26 pm
gmatblood wrote:A hare and a jackal are running a race. Three leaps of the hare are equal to four leaps of the jackal. For every six leaps of the hare, the jackal takes 5 leaps. Find the ratio of their speeds.

A. 64:25
B. 8:5
C. 5:8
D. 25:64
E. None
3 leaps of hare = 4 leaps of jackal
for every six leaps of hare, jackal takes 5 leaps
=> for every 2* 3 leaps of hare, jackal takes 5 leaps
=> for every 2*4 leaps of hare's leaps in terms of jackal's, jackal takes 5 leaps
=> so hare takes 8 jackal leaps in time the jackal takes 5 leaps.
so ratio of speeds should be 8:5

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