(6) बच्चों में से (4) बच्चों को आगे की पंक्ति में खड़ा करने के तरीके कितने हैं?
In how many ways can (4) children from (6) children be made to stand in the front row?
Explanation opens after your attempt
C. (360)
Concept
The answer is \({}^{6}P_{4}=6\times5\times4\times3=360\). Order matters in a row.
Why this answer is correct
The correct answer is C. (360). The answer is \({}^{6}P_{4}=6\times5\times4\times3=360\). Order matters in a row.
Exam Tip
उत्तर \({}^{6}P_{4}=6\times5\times4\times3=360\) है। पंक्ति में क्रम महत्त्वपूर्ण होता है।
Login to save your score, XP, coins and progress.
