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“The heights by great men reached and kept were not attained in sudden flight but, they while their companions slept, they were toiling upwards in the night.” ― Henry Wadsworth Longfellow

Last edited by chetan2u on 26 Oct 2017, 03:07, edited 3 times in total.

2) \(\frac{x}{y}+1>0\), where y is positive (x+y)/y>0 since y is positive, x+y is also positive.. but we cannot say if x+y>1 insuff

combined.. x+y is positive , so x-y is also +ive.. which means x>y.. Now \(x^2-y^2>1....x^2>1+y^2\) so so \(x^2>1\) and as x is POSITIVE, x>1 so x+y will be >1 sufficient C
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Thanks chetan2u. So, what will be the difficulty level of this question?
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“The heights by great men reached and kept were not attained in sudden flight but, they while their companions slept, they were toiling upwards in the night.” ― Henry Wadsworth Longfellow

Thanks chetan2u. So, what will be the difficulty level of this question?

hi, It should be close to 600-650 since it contains two variables and inequality too..

how can we be sure that it is close to 600-650 by seeing ''since it contains two variables and inequality too''. I want to know just for curiosity.
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“The heights by great men reached and kept were not attained in sudden flight but, they while their companions slept, they were toiling upwards in the night.” ― Henry Wadsworth Longfellow

Thanks chetan2u. So, what will be the difficulty level of this question?

hi, It should be close to 600-650 since it contains two variables and inequality too..

how can we be sure that it is close to 600-650 by seeing ''since it contains two variables and inequality too''. I want to know just for curiosity.

Hi,

generally inequalities and two variables Q are considered to be difficult by any average person, BUT since the Q has some straight forward equations, it can be 600-650 level..

However difficulty level is each ones perception. A difficult topic such as prob may be easy for you but very difficult for others
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“The heights by great men reached and kept were not attained in sudden flight but, they while their companions slept, they were toiling upwards in the night.” ― Henry Wadsworth Longfellow

Last edited by iMyself on 10 Apr 2016, 06:56, edited 1 time in total.

GMAT is nothing but all about technique. So could you please give a technique of this problem? Can you share unconventional method/shortcut way for THIS problem? Thanks...
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“The heights by great men reached and kept were not attained in sudden flight but, they while their companions slept, they were toiling upwards in the night.” ― Henry Wadsworth Longfellow