Sum of 1st n odds = n^2 ......we have [ 199 + 1 ] / 2 = 100 odds
Sum of first evens = [ first even + last even ] * n / 2
We have 202 / 2 = 101 evens
So [ 204] * [101] / 2 = even sum = 101 * 101
So
sum of odds /sum of evens =
100^2 / [ 102 * 101 ] =
5000 /5151
