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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
$$\eqalign{ & = {}^5{P_5} \cr & = 5! \cr & = \left( {5 \times 4 \times 3 \times 2 \times 1} \right) \cr & = 120 \cr} $$

This Question Belongs to Arithmetic Ability >> Permutation And Combination

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