In how many different ways can the letters of the word INCREASE be arranged?
A. 40320
B. 10080
C. 20160
D. 64
E. None of these
Answer: Option C
Solution (By Examveda Team)
The given words contains 8 letters of which E is taken 2 times.∴ Required number of ways
$$\eqalign{ & = \frac{{8!}}{{2!}} \cr & = \frac{{8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}}{2} \cr & = 20160 \cr} $$
This Question Belongs to Arithmetic Ability >> Permutation And Combination
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