1.

There are 5 different caps c_1,c_2,c_3,c_4 and c_5 and 5 different boxes B_1,B_2,B_3,B_4 and B_5. The capacity of each box is sufficient to accommodate all the 5 caps. If all the caps are identical, in how many ways can the caps be arranged in the different boxes such that no box is empty?

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Answer :A


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