alleryThe mean of 6 numbers is 8. One number, 18, is removed. The mean of the rest is?
A8
B10
C5
D6
Answer & Solution
Correct answer: D. 6
1. Total of six = 6 x 8 = 48.
2. Remove 18: 48 - 18 = 30.
3. 30 / 5 = 6.
_Source: Wikipedia, Average (CC BY-SA 4.0), Average_
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