BOB COMBO!!!

Combinatorics is pretty cool thing so far that i can relate to many things. The possibilities of rearranging the number of objects like horses in a race, to number of ways people can sit in the theater.
First part of Combinatorics was easy to begin with but as we progressed further into it we found more difficult questions. I still have a hard time using the formulas and which to use at certain problems. I got really familiar with the permutations and pick formula but i need to work on the choose formula. If you don't read the question right like what i do sometimes you end up working the question with the wrong formula and end up with a really different answer.
Well i just need to practice harder and try my best for the up coming test.
Good luck to everyone!