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Permutations and combinations

Maths & Stats

Please solve this sum step by step .. I am getting no idea

0A553529-9816-4836-B43C-016EC4D1DA9B.jpg

Harshitha Kalidindi

Harshitha Kalidindi

CA Final

51K+

22-May-22 18:31

518

Answers (11)

r is the number of factors bro


Answer D


Avasarala Vivek Aditya

Avasarala Vivek Aditya

CA Inter

6K+

22-May-22 19:59

If n = 6 , r = 2 Then , â?¶P2 i.e , 6 Ã? 5 Factors are (n) (n-1)


Avasarala Vivek Aditya

Avasarala Vivek Aditya

CA Inter

6K+

22-May-22 20:04

Thread Starter

Harshitha Kalidindi

can u explain how answrr is back of textbook also

Hope this helps

Attachments

77303f35-8649-415d-843a-22c49c8e2ea5.jpg

Avasarala Vivek Aditya

Avasarala Vivek Aditya

CA Inter

6K+

22-May-22 20:10

Thread Starter

Harshitha Kalidindi

can u explain how answrr is back of textbook also

Which answer ?


Avasarala Vivek Aditya

Avasarala Vivek Aditya

CA Inter

6K+

22-May-22 20:11

Avasarala Vivek Aditya

Which answer ?

i too didn't seeð??? its ok thank u


Thread Starter

Harshitha Kalidindi

Harshitha Kalidindi

CA Final

51K+

22-May-22 20:13

Thread Starter

Harshitha Kalidindi

i too didn't seeð??? its ok thank u

Isn't it the correct option ?


Avasarala Vivek Aditya

Avasarala Vivek Aditya

CA Inter

6K+

22-May-22 20:15

Avasarala Vivek Aditya

Isn't it the correct option ?

Yes, D is right.


Jitendra Kumar

Jitendra Kumar

CA Final

41K+

23-May-22 07:16

This is the formula for calculating the number of permutations. you can refer para. 5.3 in SM

Attachments

P&C Theorem.JPG

Jitendra Kumar

Jitendra Kumar

CA Final

41K+

23-May-22 07:23

Jitendra Kumar

This is the formula for calculating the number of permutations. you can refer para. 5.3 in SM

Thank u


Thread Starter

Harshitha Kalidindi

Harshitha Kalidindi

CA Final

51K+

23-May-22 10:05

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