Multiple choice

In how many different ways can the letters of the word "PLANNING" be arranged?

  1. 40320

  2. 6720

  3. 3360

  4. 20160
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

PLANNING has 8 letters with 2 N's repeated. Total arrangements = 8!/2! = 40320/2 = 20160. However, on closer inspection, there's only one N repeated, so 8!/2! = 20160. Wait, let me recalculate: PLANNING = P-L-A-N-N-I-N-G has 8 letters with 3 N's. So 8!/3! = 40320/6 = 6720. The answer is correct.

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