Question

A candidate is required to answer 6 out of 12 questions which are divided into two groups containing 6 questions in each group. He is not permitted to attempt not more than 4 from any group. The number of choices are​

Answer 1

Answer:

A B

4 2 →

6

C

4

×

6

C

2

2 4 →

6

C

2

×

6

C

4

3 3 →

6

C

3

×

6

C

3

Total =2×

6

C

2

×

6

C

4

×

6

C

3

×

6

C

3

=450+400=850.

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