Allied & ICAR Exam Bank • ALLIED_2506 NAT • 2 Marks

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Numerical Computation

Question Statement:

The number of distinct ways to arrange 7 beads of different colors to form a circular necklace is:

Answer Key:

360

Step-by-Step Solution & Explanation

For a necklace, clockwise and anticlockwise orientations are identical: $\frac{(n-1)!}{2} = \frac{6!}{2} = \frac{720}{2} = 360$.
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