(5) अलग-अलग मोतियों को एक सीधी डोरी पर लगाने के तरीके कितने हैं?
How many ways are there to arrange (5) different beads on a straight string?
Explanation opens after your attempt
C. (120)
Concept
On a straight string, the arrangement of (5) distinct beads is (5!=120). Do not treat it as a circular arrangement.
Why this answer is correct
The correct answer is C. (120). On a straight string, the arrangement of (5) distinct beads is (5!=120). Do not treat it as a circular arrangement.
Exam Tip
सीधी डोरी पर (5) अलग मोतियों की व्यवस्था (5!=120) है। इसे circular arrangement न मानें।
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