1348 - Data Sufficiency

Correct Answer: A

Explanation:

Algebra

First- and second-degree equations

• (1) Since 2 has to be added toy in order to make it equal to *, it can be reasoned that * > y; SUFFICIENT.
• (2) Multiplying both sides of this equation by 2 results in *=2(y -1) or *= 2y - 2. If y were 0, then * would be -2, and y would be greater than *. If y were a negative number like -2, then x = 2(-2) - 2 = -6, and again y would be greater than*. However, if y were a positive number such as 4, then* = 2(4) - 2= 6, and* > y. Since there is no other information concerning the value of y, it cannot be determined if x > j, NOT sufficient.

The correct answer is A; statement 1 alone is sufficient.