- Thread starter
- #1

#### Raerin

##### Member

- Oct 7, 2013

- 46

So I got the number of ways a student can choose to answer the first 5 questions which is 6 (5C4 + 5C5). I'm not sure what else to do.

- Thread starter Raerin
- Start date

- Thread starter
- #1

- Oct 7, 2013

- 46

So I got the number of ways a student can choose to answer the first 5 questions which is 6 (5C4 + 5C5). I'm not sure what else to do.

- Admin
- #2

- Jan 26, 2012

- 4,041

The total number answered must be 8 and there are two ways of doing this with the other constraint.

So I got the number of ways a student can choose to answer the first 5 questions which is 6 (5C4 + 5C5). I'm not sure what else to do.

1: 4 from the first 5 questions, 4 from the last 7

2: 5 from the first 5 questions, 3 from the last 7

Add up (1) and (2) and you'll get the answer.