Vincen wrote: ↑Mon May 18, 2020 6:09 am
If \(3x – t = t + 5x,\) what is the value of \(x?\)
(1) \(t = 4.\)
(2) \(x < 0.\)
[spoiler]OA=A[/spoiler]
Source: GMAT Prep
Given: 3x – t = t + 5x
Target question: What is the value of x ?
Statement 1: t = 4
Take:
3x – t = t + 5x
Replace t with 4 to get:
3x – 4 = 4 + 5x
When we solve this equation, we get
x = -4
Since we can answer the
target question with certainty, statement 1 is SUFFICIENT
Statement 2: x < 0
If x < 0, then
x can have infinitely-many different values
Since we cannot answer the
target question with certainty, statement 2 is NOT SUFFICIENT
Answer: A
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
