Basic permutation example

Reference no: EM13125883

Sarah, Jolly and Betty are female triplets. They and their 10 cousins are posing for a series of photographs. One pose involves all 13 children. How many ways can the 7 boys and 6 girls be arranged in one row under each of the following conditions?

a) The boys and girls must alternate positions.

b) The triplets must stand next to each other.

Reference no: EM13125883

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