" If "^(n+1)P_(5):^(n)P_(5)=3:2" then "'n'" is "

if ^(n)P_(5):^(n)P_(3)=2:1, then 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 ""^(n)P_(5)=""^(n)P_(6) then n is

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

If ""^nP_5:""^(n-1)P_5=3:2 then find n.

If .^(n-1)P_(3):^(n+1)P_(3)=5:12, find n

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

(i) If ""^(n)P_(4): ""^(n)P_(5)=1:2 , find n. (ii) If ""^(n-1)P_(3): ""^(n+1)P_(3)=5:12 , find n.