BTGmoderatorDC wrote:If xy is not equal to zero, what is the ratio of x to y?
1. 3x = 4y
2. x = 4
NOTE: We can write the ratio x:y as a fraction x/y
Target question: What is the value of x/y ?
Statement 1: 3x = 4y
Divide both sides by y to get: 3x/y = 4
Divide both sides by 3 to get: x/y = 4/3
So, the answer to the target question is
x/y = 4/3
Since we can answer the
target question with certainty, statement 1 is SUFFICIENT
Statement 2: x = 4
With no information about y, we cannot determine the value of x/y
Statement 2 is NOT SUFFICIENT
Answer: A
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
