Areteem: Math Challenge II-A Combinatorics Week 2 Questions P2(a) and C1

Online Course Discussion Forum

P2(a). My solution was (30 choose 6)*(24 choose 6). I don't understand why the handout solution is (30 choose 7)*(23 choose 7)

C1. My solution is (4 choose 3)*((4 choose 2)^3)*6!. Why is the handout solution (4 choose 3)*(( 3 choose 2)^3)* 6!

Hi Bryant,

There must have been a typo in the solutions.

Your answers are both correct, and the handout has been updated on Edurila.

Thank you for letting us know.

If you have any other questions let us know!

Thanks!