720, Arrange the letters of ALGEBRA so that the two As are together, 1 800, Arrange the letters of ALGEBRA so that the two As are not together, 360, Arrange the letters of STATICS so that the two Ss are together, 60, Arrange the letters of STATICS so that the two Ss are not together, 240, Arrange the letters of NUMBER so that N is at one end, 480, Arrange the letters of NUMBER so that N is not at either end, 181 440, Arrange the letters of PROBABILITY so that the two Bs are together, 725 760, Arrange the letters of PROBABILITY so that the two Bs are not together.

Permutations with Conditions

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