Question:
The average of a group of 12 numbers increases by 1.5 when one of the numbers is replaced by 9. What is the value of the number that was replaced?
The average of a group of 12 numbers increases by 1.5 when one of the numbers is replaced by 9. What is the value of the number that was replaced?
Updated On: Oct 22, 2024
- -9
- -3
- 0
- 4
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The Correct Option is A
Solution and Explanation
The correct answer is (A):-9
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