A clothing store has a selection of 80 different ties How ma

A clothing store has a selection of 80 different ties. How many ways can six ties be selected for Chris and four ties be selected for Alex?

Solution

The ways can six ties be selected for Chris and four ties be selected for Alex are =   ⁸⁰C₄ X ⁷⁶C₆

_{= (}80! / 4! x 76! ) ( 76! / 6! x 70!)