They are: 10+11+12 = 33
31, 32, 33
33
36
33/3 = 11 so the three are 9, 11 and 13
96
Divide the sum of the three consecutive odd integers by 3: 93 / 3 = 31. The smallest of these integers will be two less than 31 and the largest will be two more than 31, so the three consecutive odd integers will be 29, 31, and 33.
Their sum is 99.
It need not be. 2 and 3 are consecutive integers and their sum is 5, not 31.
Divide the sum of the three consecutive odd integers by 3: -3 /3 = -1. The smallest of these integers will be two less than -1 and the largest will be two more than -1, so the three consecutive odd integers will be -3, -1, and +1.
They are are 62, 63 and 64.
201
3 consecutive even integers whose sum is 396 are 130, 132 and 134.