If `C(n,r):C(n,r+1)=1:2` and `C(n,r+1):C(n,r+2)=2:3`. Find `n&r`.

Given that C(n, r) : C(n,r + 1) = 1 : 2 and C(n,r + 1) : C(n,r + 2) = 2 : 3 . What is P(n, r) : C(n, r) equal to ?

Given that C(n, r) : C(n,r + 1) = 1 : 2 and C(n,r + 1) : C(n,r + 2) = 2 : 3 . What is r equal to ?

Given that C(n, r) : C(n,r + 1) = 1 : 2 and C(n,r + 1) : C(n,r + 2) = 2 : 3 . What is n equal to ?

nC_(r):^(n)C_(r+1)=1:2 and ^(n)C_(r+1):^(n)C_(r+2)=2:3, findn and r

If .^(n+1)C_(r+1): .^(n)C_(r)=11:6 and .^(n)C_(r): .^(n-1)C_(r-1)=6:3 , find n and r.

If ""^(n-1)C_(r ): ""^(n)C_(r ): ""^(n+1)C_(r )=6:9:13 , find 'n' and 'r' .

If .^(n)C_(r-1)=36, .^(n)C_(r)=84 and .^(n)C_(r+1)=126 , find n and r.

What is C(n, r) + 2C(n, r - 1) + C(n, r - 2) equal to?

If .^(n)P_(r)=.^(n)P_(r+1) and .^(n)C_(r)=.^(n)C_(r-1) , find n and r.