SOLVING EQUATIONS INVOLVING PERMUTATIONS AND COMBINATIONS WORKSHEET

Problem 1 :

Solve for n :

nP2 = 42

Solution

Problem 2 :

Solve for r.

7Pr =

Solution

Problem 3 :

Solve for n.

nP2 =

Solution

Problem 4 :

Solve for n.

n-1P2 =

Solution

Problem 5 :

Solve for r.

5Pr= 6Pr-1

Solution

Problem 6 :

Solve for n

4Pn= 6 5Pn-1

Solution

Problem 7 :

Solve for n

nP5= 20 nP3

Solution

Problem 8 :

Solve for n.

nP4=

Solution

Problem 9 :

Solve for r.

9Pr= 3024

Solution

Problem 10 :

solve for r.

11Pr= 12Pr-1

Solution

Problem 11 :

Solve for n.

nP4= 12nP2

Solution

Answer Key

1)  n = 7

2)  r = 2

3)  n = 6

4)  n = 5

5)  r = 4

6)  n = 3

7)  n = 8

8)  n = 6

9)  r = 4

10)  r = 9

11)  n = 6

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