Subject: General Aptitude · Chapter: Permutations and Combinations · Exam: 2006 · Marks: · Difficulty:
In how many different ways can the letters of the word ‘PRESENT’ be arranged?
Answer
Answer (as printed):
Explanation
The word 'PRESENT' contains 7 letters, namely 2E and all other 5 are different. $\therefore$ Required number of ways $=\frac{\underline{7}}{\underline{2}}=\frac{7\times6\times5\times4\times3\times(\underline{2})}{\underline{2}}=2520$.
Explanation as extracted from the printed page; notation may be imperfect.