Answer: Let one of the number be X and the other no will be x +18, this is as per given sum.
By sum,
Step-by-step explanation: x + x + 18 = 128
or, 2 x = 128 - 18 = 110
Therefore x = 55 & the other no will be 55 + 18 = 73
Hence, 55 & 73 are the two numbers.