What is the odd numbers average total between 100 to 200?

Answer 1

101 to 199 give 50 odd numbers. Their sum is 7,500.

[I'm not too certain that the question meant 'the average total'? But, the odd numbers average total would be 7,500 ÷ 50 = 150]

Answer 2

The average of the odd numbers between 100 and 200 is:

The odd numbers are 101, 103, ..., 199; there are 50 of them and they pair up, so their average is (101+199)/2 = 300/2 = 150.

Answer 3

Their average is 150.