Home
Class 12
MATHS
If ^18C15+2 ^18C16+^17C16+1=^nC3, then n...

If `^18C_15+2 ^18C_16+^17C_16+1=^nC_3`, then `n=`

A

18

B

20

C

22

D

24

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    ARIHANT MATHS|Exercise Exercise For Session 5|18 Videos

  • PERMUTATIONS AND COMBINATIONS

    ARIHANT MATHS|Exercise Exercise For Session 6|28 Videos

  • PERMUTATIONS AND COMBINATIONS

    ARIHANT MATHS|Exercise Exercise For Session 3|11 Videos

  • PARABOLA

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|36 Videos

  • PROBABILITY

    ARIHANT MATHS|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|55 Videos

Similar Questions

Explore conceptually related problems

If ^(^^)18C_(15)+2^(18)C_(16)+^(17)C_(16)+1=^(n)C_(3) then n=

If ""^(18)C_(15)+2(""^(18)C_(16))+""^(17)C_(16)+1=""^(n)C_(3) , then n is equal to :

If "^17C_5 = ^nC_12 find n.

If (^15C_r+^15C_(r-1)(^15C_(15-r)+^15C_(16-r)=(^16C_13)^2, then the value of r is

If (^15C_r+^15C_(r-1)(^15C_(15-r)+^15C_(16-r)=(^16C_13)^2, then the value of r is

If .^nC_12=^nC_8 , find .^nC_17 and ^22C_n

Evaluate .^19C_18+^19C_17

If .^(20)C_(n+1)=.^(n)C_(16) , the value of n is