A data set has a mean of 15 and consists of 5 numbers. If 4 of the numbers are 18, 25, 6, 11, what is the remaining number?
Difficulty: Medium
About this MCQ
Medium GMAT item. Correct choice: A. 15.
- A. 15 ✓
- B. 20
Why not B: “20” is not 15.
- C. 10
Why not C: “10” is not 15.
- D. 9
Why not D: “9” is not 15.
Correct answer
A. 15
Explanation
15 (option A) is the accepted answer to “A data set has a mean of 15 and consists of 5 numbers. If 4 of the numbers are 18, 25, 6, 11, what is the remaining number”. Option B (20) is a different value from 15. Option C (10) is a different value from 15. Option D (9) is a different value from 15. Keep 15 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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