Question-20 How many different letter arrangements can be made from out of the letters of the word RECOVER?
A) 1210
B) 5040
C) 1260
D) 1200
Answer: C) 1260
Explanation
Given: RECOVER = 7 alphabet
We have to find out the number of ways the word ‘recover’
Number of ways to arrange E = 2!
Number of ways to arrange R = 2!
Number of of arrangement =\frac{7!}{2!\times2!}
=\frac{7\times6\times5\times4\times3\times2\times1}{2\times1\times2\times1}=7 x 6 x 5 x 3 x 2
= 1260
Hence, the correct answer is 1260