What percentage of A is B?
(1) A increased by 50% is equal to B.
(2) AB is 50% greater than A.
Shouldn't this be D? Kaplan
To find what percentage B is of A, you need either the values of both variables or an equation that will allow you to solve for the percentage . The stem doesn't offer much information, so move on to the statements.
Statement (1): sufficient. This can be translated into the equation A + 0.5A = B, or 1.5A = B, and you could easily solve for the percentage . Statement (1) is sufficient; eliminate (B), (C), and (E).
Statement (2): insufficient. This translates to AB = A + 0.5A. Simplified, AB = 1.5A, and dividing by A, you have that B = 1.5. However, you cannot determine the value of A, as you have two variables and only one equation; thus, you cannot determine what percentage B is of A. Choice (A) is correct.
My question is that statement is asking for percentage... the value is not important?