given:y>2.1x; asked: is y>75MI3 wrote:Q. If y is greater than 110 percent of x, is y greater than 75?
(1) x >75
(2) y - x = 10
I Chose A, am I correct?
1) x>75;
therefore y>157.5; i.e. y will be greater than 75 hence 1 alone is sufficient to answer the question.
2) y-x=10;
y=x+10;
x+10>2.1x;
1.1x<10;
11x<100;
x<100/11;
i.e. x<9.09;
now suppose x is 9; therefore we have;
y>2.1(9);
y>18.9;
i.e. y can be either 19, 20, 21,...76... and so on i.e. we cannot said with the surety whether y is going to be greater than 75 or not.. hence 2 alone is not sufficient to answer the question hence answer should be A
