The average of 5 numbers is 18. If one number is removed, the average becomes 16. What is the removed number?
A24
B26
C28
D30
Explanation
Total = 5 * 18 = 90. New total = 4 * 16 = 64. Removed number = 90 – 64 = 26.
Exam Relevance
- Topic: Averages
- Subtopic: Mean
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