Home
Class 12
MATHS
If ""^nC(12)=""^nC8 , then n is equal to...

If `""^nC_(12)=""^nC_8` , then n is equal to :

A

20

B

12

C

6

D

30

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    MODERN PUBLICATION|Exercise Multiple Choice Questions - LEVEL - II|61 Videos
  • PERMUTATIONS AND COMBINATIONS

    MODERN PUBLICATION|Exercise Latest Questions from AIEEE/JEE Examinations|6 Videos
  • PARABOLA

    MODERN PUBLICATION|Exercise RECENT COMPETITION QUESTION (QUESTION FROM KARNATAKA CET & COMED)|9 Videos
  • PROBABILITY

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTIONS (QUESTIONS FROM KARNATAKA CET & COMED )|11 Videos

Similar Questions

Explore conceptually related problems

If '^(n)C_(12) = ""^(n)C_(8) then n is equal to

If s_n=sum_(r=0)^n1/(""^nC_r)and t_n=sum_(r=0)^nr/(""^nC_r), then t_n/s_n is equal to :

If ""^nC_r-84,""^nC_(r-1)=36 and ""^nC_(r+1)=126 , then n equals :

If ""^(n-1)C_r=(k^2-3)""^nC_(r+1) , then kin :

If ""^(2n)C_3:""^nC_2=44:3 , then for which of the following values of r, the value of ""^nC_r will be 15 ?

If ""^nC_8=""^nC_2 find the value of 'n'.

If "C_(12) = "^(n)C_(6) then (n)_(2)^C=

If ""^nC_r denotes the number of combinations of n things , taken r at a time , then the expression : ""^nC_(r+1)+""^nC_(r-1)+2""^nC_r equals :

If .^nP_r=840, .^nC_r=35, then find n=

If l= LCM of 8!, 10! and 12! and h = HCF of of 8!, 10! and 12! then l/h is equal to a)132 b)11800 c)11880 d)None of these