SOLUTION: a candidate is required to answer six out of ten question which are divide into groups,each containing five question and he is not permitted to attempt more than 4 from any group.i

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Question 1135314: a candidate is required to answer six out of ten question which are divide into groups,each containing five question and he is not permitted to attempt more than 4 from any group.in how many ways can he make up his choice?

Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
2 questions from group A and 4 questions from group B  (  ways)  PLUS

3 questions from group A and 3 questions from group B  (  ways)  PLUS

4 questions from group A and 2 questions from group B  (  ways).


The answer is the sum

     +  +  = 

    10*5    +  10*10 +  5*10 = 200.


ANSWER.  200 ways.

Solved.



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