GMAT Question of the Day: Problem Solving
GMAT Bonus Question
February 9, 2022Department of Health and GMAT Sentence Correction
February 13, 2022GMAT Question of the Day: Problem Solving
Explanation
Say p = 9n + 2 and q = 9m + 7. This means p - q = 9(n - m) - 5, where n and m are positive integers. The term 9(n - m) is divisible by 3, so the remainder is -5, but 5 is greater than 3, so we need to divide 5 by 3 to get the actual remainder.
This gives us the remainder of 2. However, because of the negative sign before the 5, the remainder now becomes -2. The significance of -2 is that -2 + 3 = 1.
The correct answer choice is C.
This gives us the remainder of 2. However, because of the negative sign before the 5, the remainder now becomes -2. The significance of -2 is that -2 + 3 = 1.
The correct answer choice is C.
Multiple theories suggest the origin of the expression “mind your Ps and Qs,” everything from how parents reminded children to use polite words to how bartenders monitored the consumption of alcohol in 17th century taverns.
2 Comments
Where’s the explanation?
Sorry Lee. We forgot to add the explanation. It’s up now!