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Permutations

Permutations

by Krishnan S -
Number of replies: 1

In how many different ways the letters of the word VECTOR can be placed in the 8 boxes of the given figure so that no row remains empty?

In reply to Krishnan S

Re: Permutations

by Manish Verma -

Overall permutations = 8P6

If top and the middle rows are filled completely or if top and the bottom rows are filled completely then we have empty rows. These cases must be subtracted.

Hence, 8P6 - 6! -6! number of ways.