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Source: — Data Sufficiency |
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by arpan20690 » Mon Dec 26, 2011 3:53 am
1) If K and M are positive integer and smaller than 1. it does not give any information
about which one is greater than another. so "NOT Sufficient".
2) if m/k < 1. then m/k can be -2.( if one out of them is negative then
the fraction will give negative value), then k/m = -1/2, which is still less than 1.
So, "NOT Sufficient".
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by Anurag@Gurome » Mon Dec 26, 2011 3:54 am
karthikpandian19 wrote:Is it true that k/m > 1?

(1) k and m are positive numbers smaller than 1.

(2) m/k < 1
(1) If k = 0.1 and m = 0.2, then k/m = 1/2 < 1
If k = 0.2 and m = 0.1, then k/m = 2 > 1
No definite answer; NOT sufficient.

(2) m/k < 1
If m = -1 and k = 2, then k/m = -2 < 1
If m = 1 and k = 2, then k/m = 2 > 1; NOT sufficient.

Combining (1) and (2), we know that k and m are positive numbers smaller than 1 such that m/k < 1; SUFFICIENT.

The correct answer is C.
Last edited by Anurag@Gurome on Mon Dec 26, 2011 3:56 am, edited 1 time in total.
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by arpan20690 » Mon Dec 26, 2011 3:56 am
But sir, in 2) it is not stated that both of m and k will be positive.
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by Anurag@Gurome » Mon Dec 26, 2011 3:57 am
arpan20690 wrote:But sir, in 2) it is not stated that both of m and k will be positive.
True, i missed that, have edited the post.
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by karthikpandian19 » Tue Dec 27, 2011 9:47 pm
OA is C
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