Let the 3 even numbers be 2x, 2x + 2 and 2x + 4, so we have:-
2x + 2x + 2 + 2x + 4 = 2x + 200
4x = 194
x = 48.5
2x = 97
The question wants even numbers so there is no answer to this
the numbers 97,99 and 101 fit the equation but these are odd numbers.