How many 3-letter codes can be formed by choosing GMAT
How many 3-letter codes can be formed by choosing, without replacement, 3 letters from the word PEPPER? A) 6 B) 18 C) 19 D) 27 E) 30 Yet again we’re faced with a GMAT combinatorics question that doesn’t have anything to do with true permutations or combinations. That means you won’t be able to apply … Read More