Question

condidates find out answer of the question

Answer 1

Answer:

Number of choosing 6 questions from 10 =

10

C

6

=210.

Number of attempting more than 4 questions from the group =2×

5

C

5

×

5

C

1

=10.

So, required number of ways=210−10=200.

Alternative,

Reuired number of ways=

5

C

3

×

5

C

3

+

5

C

4

×

5

C

2

+

5

C

2

×

5

C

4

.

=10×10+5×10+10×5

=100+50+50

=200.

Explanation:

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