In how many different ways can the letters of the word DISPLAY be arranged?

A. 720

B. 1140

C. 2520

D. 5040

E. None of these

Answer: Option D

Solution(By Examveda Team)

The given word contains 7 letters, all different .
∴ Required number of ways
$$\eqalign{ & {}^7{P_7} = 7! \cr & = \left( {7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1} \right) \cr & = 5040 \cr} $$