21
The numbers are -21 and -20.
They are 17, 18, 19, 20 and 21.
There is no set of three consecutive whole numbers that add up to 154.
21, 22 & 23 15, 16, 17 & 18
21
The numbers are -21 and -20.
The numbers are 21, 22, 23, 24, and 25.
21, 22, 23, 24
21, 22, 23
17, 19, 21 and 23.
They are 17, 18, 19, 20 and 21.
There is no set of three consecutive whole numbers that add up to 154.
18 + 19 + 20 + 21 + 22 = 100
15, 17, 19, 21 and 23.
21, 22 & 23 15, 16, 17 & 18
They don't, the closest you can it get is from 9+10, which is 19, or 10+11, which is 21. Decimals aren't really considered consecutive numbers.