99
The average of the smallest and largest even number in the range is (2+98)/2 = 50.
The second smallest and the second largest give (4+96)/2 = 50
The third smallest and third largest give (6+94)/2 = 50
etc until
24th pair gives (48+52)/2 = 50
and the 25th even number is 50 (whose "average" is 50.
So the answer is 50.
64 + 66 + 68 = 198
198 is an even number.
There is only one number that equals 198. The number is . . . . . . . . . . 198 .
The average of the first n even numbers is n+1, so 101.The average of the first n even numbers is n+1, so 101.The average of the first n even numbers is n+1, so 101.The average of the first n even numbers is n+1, so 101.
The sum of all even numbers from 2 through 200 is 40,200.
It is: 2*3*3*11 = 198
They are: 65+66+67 = 198
The multiples of 198 (which are infinite) are all divisible by 198, including these: 198, 396, 594, 792, 990, 1188, 1386 . . .
The prime numbers between 180 and 198 are 181, 191, 193, and 197.
The LCM of these numbers is 198. LCM is Least Common Multiple.
2, 9 and some other numbers
No.