SOLUTION: if the mean of 19 number is 1600. If 2000 number is added Find out the new mean?

SOLUTION: if the mean of 19 number is 1600. If 2000 number is added Find out the new mean?

Algebra.Com

Question 391680: if the mean of 19 number is 1600. If 2000 number is added Find out the new mean?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
The mean of 19 numbers is 1600, so

If we let , then

The mean of these twenty numbers is just 32400 divided by 20, or 1620.
RELATED QUESTIONS
The mean of five numbers is 10.If a new number is added then the mean becomes... (answered by oberobic)

The mean of n numbers is 5.If the number 13 is now included with the n numbers the new... (answered by Boreal)

The mean of 12 numbers is 17. If 2 is subtracted from every number, what will be the new (answered by JulietG)

the mean of ten positive numbers is 16. When another number is added the mean is 18. find (answered by ikleyn,greenestamps)

mean of 15 nos is 5 if 2 is added to each no .what will be the new... (answered by indra89811,MathTherapy)

the mean of five positive numbers is 4 when another number is added ,the mean number... (answered by ikleyn)

If d mean of seven number is 96 and an eighth number is added which makes the number... (answered by stanbon)

the mean of 5 number is 20.if 1 number is excluded mean of the remaning number becomes23 (answered by fcabanski)

if 19 is added to a number the result is 37 less than twice the number, find the... (answered by rfer)