Question

The number of ways in which the letters of the word ARRANGE can be permuted such that the R’s occur together is

• A. $\frac{7!}{2!2!}$
• B. $\frac{7!}{2!}$
• C. $\frac{6!}{2!}$
• D. $5!\times 2!$

Answer 1

The correct option is C $\frac{6!}{2!}$

Consider RR to be a single letter in
A A RR N G E
So, total arrangement
$=\frac{6!}{2!}$