is x < w ?
1) x - w < x
2) x + w < w
Can someone please explain the OA along with the process of solving such sums?
Thanks in advance
Ok i got it now
1) x - w < x
subtract x from both sides :
-w < 0
w > 0 but no clue about x ------> insufficient
2) x + w < w
subtract w from both sides :
x < 0 =====> no clue about w ---> insufficient
C) 1 + 2
w > 0 and x < 0 hence x < w ------> sufficient
Can some one please confirm whether my reasoning is correct.
I believe dividing or multiplying by an expression (such as w and or x) in this case is wrong, Since it is not mentioned whether x & or w is +ve/-ve and or int or a fraction
But subtraction should be ok.
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