SOLUTION: The average of 10 numbers is 63. The average of 6 of these numbers is 57. Find the average of the other 4?

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: The average of 10 numbers is 63. The average of 6 of these numbers is 57. Find the average of the other 4?      Log On


   



Question 989636: The average of 10 numbers is 63. The average of 6 of these numbers is 57. Find the average of the other 4?
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
average of other 4 numbers = x

10 * 63 = 6 * 57 + 4x
630 = 342 + 4x
4x = 288
x = 72