ABC26GN5289 · Permutations and Combinations

Subject: General Aptitude · Chapter: Permutations and Combinations · Exam: 2010 · Marks: · Difficulty:

In how many different ways can the letters of the word OFFICES be arranged?

(a)2520

(b)5040

(c)1850

(d)1680

(e)None of these

Answer

Answer (as printed): A

Explanation

The given word contains 7 letters of which F is taken 2 times. ∴ Required number of ways = 7 7 ×6×5×4×3×2×1 = = 2520. 2 2×1

Explanation as extracted from the printed page; notation may be imperfect.