A data set has a mean of 18 and consists of 6 numbers. If 5 of the numbers are 11, 6, 8, 25, 9, what is the remaining number?
Difficulty: Medium
About this MCQ
Medium GMAT item. Correct choice: D. 49.
- A. 54
Why not A: “54” is not 49.
- B. 44
Why not B: “44” is not 49.
- C. 18
Why not C: “18” is not 49.
- D. 49 ✓
Correct answer
D. 49
Explanation
49 (option D) is the accepted answer to “A data set has a mean of 18 and consists of 6 numbers. If 5 of the numbers are 11, 6, 8, 25, 9, what is the remaining number”. Option A (54) is a different value from 49. Option B (44) is a different value from 49. Option C (18) is a different value from 49. Keep 49 as the GMAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: American Exams, Quant, Statistics, GMAT
Submitted by: MCQsHub Editorial
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