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There are four balls of different colour...

There are four balls of different colours and four boxes of colours same as those of the balls. Find the number of ways in which the balls, one in each box, could be placed such that a ball is not placed in the box of its own colour.

A

`5/8`

B

`3/8`

C

`1/8`

D

`7/8`

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The correct Answer is:
B
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