Given that,
the three numbers are consecutive
The three numbers are
x
x + 1
x + 2
Sum of the numbers = 81
x + (x + 1) + (x + 2) = 45
x + x + x + 1 + 2 = 45
3x = 45 - 3
3x = 42
x = 42/3
x = 14
Therefore, the three numbers are x = 14, x + 1 = 15 and x + 2 = 16