Three integers have a common difference of 3 and their sum is 115, what are the numbers?

Question

This is in my hw. It doesn't say anything about consecutive integers.

Answer 1

integers with "kommon differ" impli a number sequens

sum=(n/2)(start number +end number)=115

step size=3, so end number=start number+6

n=3, so sum=1.5*(start +start+6)=115

dont werk for integers: 35+38+41=114

36+39+42=117

for sum=115, gotta yuze reel numbers