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The average (arithemic mean) of a list o...

The average (arithemic mean) of a list of 5 numbers is n. When an additional number of added to the list, the average of all 6 numbers in n+3. Which of the following is the value, in terms of n, of the added to the list?

A

6n+18

B

5n

C

n+18

D

n+6

Text Solution

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The correct Answer is:
C
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