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Find n if ^(n-1)P3:^nP4=1:9...

Find n if `^(n-1)P_3:^nP_4=1:9`

Text Solution

Verified by Experts

The correct Answer is:
n=9
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Knowledge Check

  • Find n , if ""^(n-1) P_3 : ""^(n) P_4 =1 :9 .

    A
    6
    B
    9
    C
    12
    D
    15

  • Find n if ""^(n)P_(4)=18 ""^(n-1)P_3

    A
    12
    B
    8/5
    C
    18
    D
    54/17

    • Similar Questions

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    Find n if "^nP_3 : ^(n+1)P_3 = 5:12

    Find n if ,,n-1P_(3)quad :^(n)P_(4)=1:9

    Find the value of r if "^(n-1)P_r : ^nP_r = 2:3 and "^nC_r :^(n+1)C_r = 9:13 , then find n and r

    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) (iii) .^(n-1)P_(3): .^(n)P_(4) = 1:9 (iv) .^(n)P_(6) = 30 .^(n)P_(4) (v) .^(2n+1)P_(n-1): .^(2n-1) P_(n) = 3:5 (vi) P(n,4) =30 P (n,2)

    (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 if n if "^(n+1)P_3 = 4^(n)P_2

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