# For the next three items that follow :

Given that C(n, r) : C(n, r + 1) = 1:2 and C(n, r + 1) : C(n, r + 2) = 2 : 3.

1. What is the equal to ?

- 11
- 12
- 13
- 14

2. What is r equal to ?

- 2
- 3
- 4
- 5

3. What is P(n, r) : C(n, r) equal to ?

- 6
- 24
- 120
- 720

Given that C(n, r) : C(n, r + 1) = 1:2 and C(n, r + 1) : C(n, r + 2) = 2 : 3.

1. What is the equal to ?

- 11
- 12
- 13
- 14

2. What is r equal to ?

- 2
- 3
- 4
- 5

3. What is P(n, r) : C(n, r) equal to ?

- 6
- 24
- 120
- 720