the odds of flopping a set

[wyattjames4]

the way ive always conceived the odds of flopping a set is the traditional 2 outs outta 50 cards, three times, equals 6 outs outta 50 equals a 12 percent chance or 7 and 1/3 to 1. but im wondering if thats the right way to figure it out. shouldnt the question be, of the remaining 50 cards in the deck, how many 3 card combinations contain one or both of the same ranked card in your hand? i dont know, you tell me. and if that is the question anyone know an easy way to work the math on it.