[nP_(13):n+1P_(12)=3:4],[^(n)P_(13):^(n+1)P_(12)=3:4]

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

Find the value of n if ""^(n) P_(13) : ""^(n+1) P_(12) =(3)/(4)

Find the value of n such that (i)^nP_(5)=42^(n)P_(3),n>4(nP_(4))/(n-1P_(4))=(5)/(3),n>4

(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.

Find the value of n from each of the following: (i) 10 .^(n)P_(6) = .^(n+1)P_(3) (ii) 16.^(n)P_(3) = 13 .^(n+1)P_(3)

Find the value of n such that "(i) "^(n)P_(5) =42 xx ""^(n)P_(3), n gt 4 " (ii) "(""^(n)P_(4))/(" "^(n-1)P_(4))=(5)/(3), n gt 4.

Find the value of n such that "(i) "^(n)P_(5) =42 xx ""^(n)P_(3), n gt 4 " (ii) "(""^(n)P_(4))/(" "^(n-1)P_(4))=(5)/(3), n gt 4.

If ""^((n+2))C_(7):^((n-1))P_(4)=13:24 find n.