Calvin has 3 red juggling pins, 4 blue juggling pins, 5 white juggling pins, and 6 green juggling pins. How many ways can he give a set of 3 juggling pins to Dan?

2 answers

18! / 3!4!5!6!*3!

The question should be about the number of ways he can choose 3 pins. Who knows how he gives them away?
I am not sure how to solve that?