Question

The mean of eight numbers is 27. If one more number is included, then the mean is 26.
Find the included number.
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Answer 1

Answer:

Included number is 18

Step-by-step explanation:

The mean of eight numbers is 27.

total sum of eight number is 8 *27= 216

If one more number is included, then the mean is 26.

now the sum of numbers become = 26 *9 = 234

the new number added is 234-216 = 18

Included number is 18

Answer 2

Step-by-step explanation:

hope this will help

thnqq so much