OpenStax, Algebra and Trigonometry 2e §13.5 Counting Principles · Exercise 53 · Combinatorics · Permutations & combinations
Counting Principles · Exercise 53
How many ways can a committee of 3 freshmen and 4 juniors be formed from a group of freshmen and juniors?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Algebra and Trigonometry 2e · §13.5 Counting Principles · Exercise 53
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