Question

How many ways the letters of the word ${}^{\prime }ARMOU{R}^{\prime }$ can be arranged?

• A. $720$
• B. $300$
• C. $360$
• D. $350$

Answer 1

The correct option is C $360$

ARMOUR
Number of letters $=6$

$R^{\prime }s⟶2$

Number of ways of arranging

$=\frac{6!}{2!}=6\times 5\times 4\times 3=12\times 30=360$

Therefore number of ways of arranging $=360$