In how many different ways can the letters of the word RUMOUR be arranged? · ABC26GN5296
Subject: General Aptitude · Chapter: Permutations and Combinations
In how many different ways can the letters of the word RUMOUR be arranged?
(a)30
(b)90
(c)180
(d)720
(e)None of these
Answer
Answer (as printed): C
Explanation
The given word contains 6 letters out of which R is taken 2 times, U is taken 2 times and other letters are all different. ∴ Required number of ways 6 6×5× 4×3×2×1 = = = 180. 2⋅ 2 2×2
Explanation as extracted from the printed page; notation may be imperfect.