अक्षरों (A,E,I,O,U) में से (2) अक्षरों का क्रम बनाना हो तो कितने तरीके होंगे?
If an order of (2) letters is to be made from (A,E,I,O,U), how many ways are possible?
Explanation opens after your attempt
D. (20)
Concept
This is \({}^{5}P_{2}=5\times4=20\). In ordered letters, (AE) and (EA) are considered different.
Why this answer is correct
The correct answer is D. (20). This is \({}^{5}P_{2}=5\times4=20\). In ordered letters, (AE) and (EA) are considered different.
Exam Tip
यह \({}^{5}P_{2}=5\times4=20\) है। ordered letters में (AE) और (EA) अलग माने जाते हैं।
Login to save your score, XP, coins and progress.
