vanacore
If x and y are positive integers and x < y, what is the value of x?
(1) The highest common factor of x and y is 8
(1) The lowest common multiple of x and y is 48
Can we not conclude from both that x is 16 and y 24??? so C?
If this were correct, the answer would have been C, not E. Since the correct answer is E (check the OA under the spooler in the original post), there must be other possible cases. For example, consider the case shown in the solution above, where x = 8 and y = 48.
P.S. Pure algebraic questions are no longer a part of the
DS syllabus of the GMAT.
DS questions in GMAT Focus encompass various types of word problems, such as:
- Word Problems
- Work Problems
- Distance Problems
- Mixture Problems
- Percent and Interest Problems
- Overlapping Sets Problems
- Statistics Problems
- Combination and Probability Problems
While these questions may involve or necessitate knowledge of algebra, arithmetic, inequalities, etc., they will always be presented in the form of word problems. You won’t encounter pure "algebra" questions like, "Is x > y?" or "A positive integer n has two prime factors..."
Check
GMAT Syllabus for Focus EditionYou can also visit the
Data Sufficiency forum and filter questions by
OG 2024-2025, GMAT Prep (Focus), and Data Insights Review 2024-2025 sources to see the types of questions currently tested on the GMAT.
So, you can ignore this and similar questions.Hope it helps.