Question

the mean of eight numbers is 27 . if one more numbers is 27. if one more number is included, then the mean is 26. find the included number.
please give fast answer with explanation ​

Answer 1

Answer:

The answer is 18

Step-by-step explanation:

Initially there are 8 nos with mean 27

so 27 * 8 = 216 (1)

After adding 1 number mean is 26 with total numbers 9

so 26 * 9 = 234 (2)

subtracting 1 from 2 the answer is 18