| In how many different ways can the letters of the word 'BANKING' be arranged? |
A) 5040
B) 2540
C) 5080
D) 2520
E) None of these
Correct Answer: D
Solution :
| BANKING |
| Total letter = 7, where N comes two times |
| \[\therefore \] \[P=\frac{7!}{2!}=\frac{7\times 6\times 5\times 4\times 3\times 2}{2}=2520\] |
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