In how many different ways can the letters of the word ‘REPLACE’ be arranged ?
Solution
The word 'REPLACE' has 2 E,1 A,1 R,1 C,1 L,1 P. Hence no. of ways in which it can be arranged=$$\frac{7!}{2!}$$. =$$\frac{5040}{2}$$. =$$2520$$. Hence, Option E is correct