CAT 2018 Permutations and Combinations Question (Medium)

Question

In how many ways can the letters of word ASTRONAUT be arranged?

Optima Learn · Accepted Answer

Understanding We need the number of distinct arrangements of the letters of the word ASTRONAUT. Analyzing ASTRONAUT has 9 letters in total, with the letter A repeated twice and the letter T repeated twice and all other letters distinct . The number of distinct arrangements is 9! 2! 2! 362880 4 90720

CAT 2018 Permutations and Combinations — Previous Year Question

CAT 2018

Quantitative

Permutations and Combinations

Medium

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