We have:
[1]
And
Note that I removed x_n you could remove some x_i
now substitute in [1]:
you get
so n < 7....
Sorry I'm new to the forums and I'm not sure if this belongs here but some help on this one would be greatly appreciated. Thanks in advance.
The average of some set of n positive numbers is 60. After removing one of the numbers, the average of the remaining numbers is 70. What is the largest possible value of n?