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A. 40320
B. 10080
C. 78620
D. 20160
Answer & Solution
Option: D
Explanation :Pakistan has total 8 letters and 2 letters are repeated, so that permutations formula gives:
8!/2!
= 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1/(2 x 1)
Cancel 2 by 2 we get
=8 x 7 x 6 x 5 x 4 x 3
=20160 permutations.
Explanation :Pakistan has total 8 letters and 2 letters are repeated, so that permutations formula gives:
8!/2!
= 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1/(2 x 1)
Cancel 2 by 2 we get
=8 x 7 x 6 x 5 x 4 x 3
=20160 permutations.
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