VJesus12 wrote: ↑Fri Dec 17, 2021 2:00 am
Is positive integer \(x\) divisible by \(48?\)
(1) \(x\) is divisible by \(8.\)
(2) \(x\) is divisible by \(6.\)
Answer:
E
Source: Veritas Prep
Target question: Is positive integer x divisible by 48?
When I scan the two statements, they both feel insufficient, AND I’m pretty sure I can identify some cases with conflicting answers to the
target question. So, I’m going to head straight to……
Statements 1 and 2 combined
Statement 1 tells us that x is divisible by 8.
Statement 2 tells us that x is divisible by 6
There are many values of x that satisfy BOTH statements. Here are two:
Case a: x = 48. In this case, the answer to the target question is
YES, x is divisible by 48
Case b: x = 24. In this case, the answer to the target question is
NO, x is not divisible by 48
Answer: E
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
