In how many different ways can the letters of the word SMART be arranged?
A. 25
B. 60
C. 180
D. 200
E. None of these
Answer: Option E
Solution(By Examveda Team)
The given word contains 5 letters, all different.∴ Required number of ways
$$\eqalign{ & = {}^5{P_5} \cr & = 5! \cr & = \left( {5 \times 4 \times 3 \times 2 \times 1} \right) \cr & = 120 \cr} $$
Related Questions on Permutation and Combination
A. 3! 4! 8! 4!
B. 3! 8!
C. 4! 4!
D. 8! 4! 4!
A. 7560,60,1680
B. 7890,120,650
C. 7650,200,4444
D. None of these
A. 8 × 9!
B. 8 × 8!
C. 7 × 9!
D. 9 × 8!
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