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 B_3 can have only C_1 or C_5, in how many ways can you arrange the caps such that all boxes have one cap?

Answer»

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Answer :C


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