Solutions
Get detailed explanations to advanced GMAT questions.
Question
When the even integer n is divided by 9, the remainder is 8. Which of the following, when added to n, gives a number that is divisible by 18?
Option A:
1
Option B:
4
Option C:
9
Option D:
10
Option E:
17
Difficulty Level
MediumSolution
Option D is the correct answer.
Option Analysis
Given that n=9q+8 and n is even –> n could be 8, 26, 44, …
What number from answer choices when added to 8 (for example) yields a multiple of 18?
Only option 10.
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