What will be Excluded Number? If
The mean of five numbers is 18. If one number is excluded, their mean is 16. The excluded number is :
- 25
- 26
- 27
- 30
Answer: (2) 26
Explanation:-
The mean of five numbers = 18
Then, the sum of five numbers = 18 x 5 = 90
One new number is excluded.
Then, the new mean = 16
The sum of remaining number = 16 x 4 = 64
Excluded number = 90 – 64
= 26
Hence, the excluded is 26.
