Find the number of distinguishable permutations of the lette

Find the number of distinguishable permutations of the letters in the word HAWAII The number of distinguishable permutations is

Solution

Number of letters in the word \"HAWAII\" = 6

Number of times I occuring = 2

Number of times A occuring = 2

Total number of distinguishable permutations = 6!/(2!2!) = 720/4 = 180 permutations