(In reply to
re: Start the ball rolling...? by brianjn)
Thanks for the clarification, though I am still not sure the exact meaning of this problem.
You apparently seek a DIFFERENT triplet for each of the values of n=1..5 (so A, B, and C do not need to be divisible by 60). However, in that case, B-n=A still seems to follow from "A=n*X" and "B=n*(X+1)" = (n*X) + (n*1), by substituing "A" for "(n*X)" giving B=A + (n*1) == B=A+n == B-n=A.
I presume the same value of n must be used for all three constraints, for any one triplet solution. Also, I was also asking if we should assume that X and Y are positive integers in all cases. If this is so, I think it should be stated; otherwise we should assume that they may not be. I am not sure if you preclude one or more of the "3 digit numbers" starting with one or more zeroes, since you do not so state. Do you intend that X and Y have their same values in all three constraint equations for a given n? Also, should we assume that you are asserting that there is only one 5-tuple of triplets which will satisfy your conditions?