Math, asked by sanhitadas, 1 year ago

if P( n-1,3 ) : P ( n,4 ) = 1 : 9. Find r. Using permutation

Answers

Answered by Sunil07
4
in question not find r ..... find the' n '


sorry n =9
Attachments:
sanhitadas: but the actual ans is n=9
Sunil07: yaa by mistake i wrote tge 4 .....i will change my answer.
Sunil07: see in contains ..
sanhitadas: its ok
Answered by tanishk52
10
here isyour answer n=9
Attachments:
tanishk52: you're most welcome
sanhitadas: thank u
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