Mathematics 9709 · AS & A Level · Permutations and combinations

Permutations and combinations — practice question

(a)[2]

Find the number of different arrangements that can be made from the 9 letters in the word JEWELLERY when the three Es are together and the two Ls are together.

(b)[4]

Find the number of different arrangements that can be made from the 9 letters in the word JEWELLERY where the two Ls are not next to each other.

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