Home
Class 11
MATHS
Find n if ""^(n-1)P(3) : ""^(n)P(4)=1:9....

Find n if `""^(n-1)P_(3) : ""^(n)P_(4)=1:9`.

Text Solution

Verified by Experts

The correct Answer is:
9
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    NCERT TELUGU|Exercise EXERCISE 7.4|10 Videos

  • PERMUTATIONS AND COMBINATIONS

    NCERT TELUGU|Exercise Miscellaneous Exercise on Chapter 7|11 Videos

  • PERMUTATIONS AND COMBINATIONS

    NCERT TELUGU|Exercise EXERCISE 7.2|7 Videos

  • MATHEMATICAL REASONING

    NCERT TELUGU|Exercise Miscellaneous Exercise on Chapter 14|16 Videos

  • PRINCIPLE OF MATHEMATICAL INDUCTION

    NCERT TELUGU|Exercise EXERCISE - 4.1|13 Videos

Similar Questions

Explore conceptually related problems

If ""^((n+1))P_(5): ""^(n)P_(6)=2:7 , find

If ""^(n+1)P_(5):""^(n)P_(6)=2:7 , find n.

If ""^(n)P_(7)=42. ""^(n)P_(5). find n.

I : IF ""^(n+1) P_(5) : ""^(n)P_(5)=3:2 then n=14 . II . IF ""^(56)P_(r-6) : ""^(56)P_(r+3)=30800 : 1 then r= 41.

If a,b,c are the values of n where ""^(n)P _(7) = 42 ""^(n)P_(5) ,""^(n)P_(4) = 1680 , ""^(n) P_(3) =1320 respectively then the ascending order of a,b,c is

If ""^((n+1))P_(5): ""^(n)P_(5)=3:2 , find n

IF ""^((2n-1))P_(n-1) : ""^((2n-1))P_n = 3:5 then n=

If ""^(n)P_(5)=""^(n)P_(6) then n is

Find the value of n such that (""^(n)P_(4))/(""^(n-1)P_(4))=(5)/(3), n gt 4