In how many distinct arrangements can the letters of “VENTURE” be written? (E appears twice; remaining letters are distinct.)
Aptitude
Permutation and Combination
Difficulty: Easy
Choose an option
-
A840
-
B5040
-
C1260
-
D2520
Answer
Correct Answer: 2520
Explanation
Introduction / Context:“VENTURE” contains 7 letters with E repeated twice. Use the multiset permutation formula.
Given Data / Assumptions:
- Total letters = 7; multiplicity: E × 2; others distinct.
Concept / Approach:Number of arrangements = 7! / 2!.
Step-by-Step Solution:
7! / 2! = 5040 / 2 = 2520.Verification / Alternative check:Only E repeats; thus a single 2! divisor is needed.
Why Other Options Are Wrong:5040 ignores repetition; 840 and 1260 are undercounts.
Common Pitfalls:Over- or under-dividing by factorials when multiple letters repeat (not applicable here).
Final Answer:2520