Of the three consecutive natural numbers, the smallest one is x, and the average of the three numbers is X______ .

Of the three consecutive natural numbers, the smallest one is x, and the average of the three numbers is X______ .

(x + X + 1 + X + 2) △ 3 = (3x + 3) △ 3 = x + 1. A: the average of these three numbers is x + 1. So the answer is: x + 1