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Source: — Data Sufficiency |
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by beny » Mon Aug 27, 2007 3:23 pm
Answer D.
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by radhika1306 » Mon Aug 27, 2007 5:11 pm
yeah can u explain please:)
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by Prasanna » Mon Aug 27, 2007 5:37 pm
x > r and y < s

You could change y<s to -y>-s (the equation gets inverted when the sign is changed)

Now adding both the equations you get x-y>r-s

Hence (1) is sufficient.

Since (2) is also sufficient answer would be Option D
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