A question paper consists of two sections A and B having respectively 3 and 4 questions.Four questions are to be solved to qualify in that paper.It is compulsory to solve at least one question from section A and 2 questions from section B .In how many ways can a candidate select the questions to qualify in that paper?	Choose the correct choice from the following answers:
A) 30
B) 40
C) 42
D) 44
E) 46
here two cases are possible.   case 1) 1 question from section 30 and 3 question from section B are solved = 3C1.4C3   case 2) 2 question from section 30 and 2 question from section B are solved = 3C2.4C2   thus total number of ways = 3C1.4C3 + 3C2.4C2 = 30   30NS:30
<result>A</result>
A question paper consists of two sections A and B having respectively 3 and 4 questions.Four questions are to be solved to qualify in that paper.It is compulsory to solve at least one question from section A and 2 questions from section B .In how many ways can a candidate select the questions to qualify in that paper?