14 + 15 + 16 = 45
5*9= 45
The smallest of the three is 13.
18, 27, 45
They are: 13+15+17 = 45
13+15+17=45
The numbers are 43, 44 and 45.
44 + 45 + 46 = 135
44 + 45 + 46 = 135
Sum of 3, 19 & 23 is equal to 45.
The numbers whose sum is 129 are 41, 43 and 45.
45
If you mean the numbers are all 15 then the answer is 45 otherwise the answer is the 15 that you already stated in your question to be the sum.