SOLUTION: the average of a set of 6 numbers was 30 . when one of the six numbers was removed from the set, the average decreased by 3. what was the number that was removed?
Algebra.Com
Question 780874: the average of a set of 6 numbers was 30 . when one of the six numbers was removed from the set, the average decreased by 3. what was the number that was removed?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Average of 6 numbers = 30
Total of 6 numbers = 180
Average of 5 numbers = 27
Total of 5 numbers = 135
180 - 135 = 45.
45 was removed.
Hope this helps.
:-)
RELATED QUESTIONS
The average of a set of 6 integers is 22. When one of these numbers is removed, the... (answered by Alan3354)
The average of six numbers is 120. One number is removed and the new average is 110.... (answered by Fombitz)
the average of 3 numbers is 16. if one of the numbers is removed the avreage of the... (answered by Fombitz)
The average of a set of 11 numbers is 11. If two numbers are removed the average of the... (answered by richwmiller)
The average of one set of 4 numbers is 35. The average of another set of numbers is 20.... (answered by ValorousDawn)
the average of a set of numbers is 23. When -35 is added to the set, the average is 21.... (answered by ikleyn)
the average of a set of seven numbers is exactly 81 if one of the numbers is discarded... (answered by scott8148)
The average of two numbers is 60. If 40 is one of the numbers and it is removed from the... (answered by rothauserc,ben720)
A set of ten numbers has a mean of 132. If one of the number is removed. The mean is now (answered by Login@123,greenestamps)