Is x +y <1 ?
1. x < 8/9;
2. y < 1/8;
Is there any easy way to combine both the equations to solve this problem and genral way to attack such problems.
inequality
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Hi,
I am not sure of a general way but the way I would do this problem is as follows:
since x<8/9 and y<1/8.
x+y has to be less than 8/9+1/8
i.e, x+y<73/72
x+y<73/72 doesnt necessarily mean x+y<1. it could be 1.00000009 or some value less than 73/72 but greater than 1.
so, my answer would be (E). Both stmts not sufficient.
I am not sure of a general way but the way I would do this problem is as follows:
since x<8/9 and y<1/8.
x+y has to be less than 8/9+1/8
i.e, x+y<73/72
x+y<73/72 doesnt necessarily mean x+y<1. it could be 1.00000009 or some value less than 73/72 but greater than 1.
so, my answer would be (E). Both stmts not sufficient.