SOLUTION: the mean of 5 number is 20.if 1 number is excluded mean of the remaning number becomes23

Algebra.Com
Question 891649: the mean of 5 number is 20.if 1 number is excluded mean of the remaning number becomes23
Answer by fcabanski(1391)   (Show Source): You can put this solution on YOUR website!
Sum / # of numbers = mean.


sum / 5 = 20


sum = 5*20 = 100


sum = mean * number of numbers.
For the four remaining numbers, the sum is 4 * 23 = 92. The number removed was 100-92 = 8.

RELATED QUESTIONS

the mean of 6 numbers is 24.If one number is excluded, the mean of remaining numbers... (answered by Princess F)
the average of 5 number is 27.if one number is excluded the average is 25 .the excluded... (answered by clearblueskai)
A certain university classified students as freshmen, sophomores, juniors, seniors, or... (answered by math_tutor2020)
the mean of first prime number... (answered by richard1234)
what is the missing number if you have 1,3,5,_ and the mean number... (answered by CubeyThePenguin)
if the mean of 19 number is 1600. If 2000 number is added Find out the new... (answered by richard1234)
the mean of 4 number is 25. if each number is decreased by 10 ,what is the mean of the... (answered by Amily_2190)
The mean of n numbers is 5.If the number 13 is now included with the n numbers the new... (answered by Boreal)
If mean of 100 numbers is 45. The mean that 99 numbers is 44 . What is the first number... (answered by Okeke_Christian)