Add Math - Combination (uncommon question)

SPM - Add Math - Permutation and Combination. I find this question is very different with other combination questions. So I make one video for it. Hope u can understand what I am trying to explain and hope u will like this video. Thanks for watching

[marissa]

Thank you so much..i have this exact question in my college math..u hve been helping me since end of form 3..i still go back to ur videos even now in college🙂❤

[langerhainzkl]

Thank you very much sir, I feel proud of myself. Thanks for boosting my confidence and understanding of the concept.

[mydotasopro]

Do you have a flu? You dont sound well...
Take care and thank you for making amazing videos on youtube, helping students around the world.

[lingtimothy]

Can u teach more about combination? I Don really good in it

[leongwinkie]

18 ways no need to times 3? Because the first one you got times 3

[NhanNguyen-dvfu]

Some segments in the video are stamped not adjacent to each other

[chuhengtan]

Maybe you lost the triangle(with two corner at line abc) it should be 3c1 X 6c2 + 6c1 X 3c2 = 63 ??

[zerinacuric]

Some segments in the video are stamped not adjacent to each other