AP EAMCET · Maths · Permutation Combination
A question paper has two sections A and B in which section-A had 8 questions and section- \(B\) has 6 questions. A student has to answer a total of 10 questions, choosing atleast 4 questions from section- \(A\) and atleast 3 questions from section-B. Then the number of ways a student can answer that paper is
- A 800
- B 820
- C 840
- D 986
Answer & Solution
Correct Answer
(D) 986
Step-by-step Solution
Detailed explanation
The student may select: (i) (4 out of 8 from A) and (6 out of 6 from B) (ii) (5 out of 8 from A) and (5 out of 6 from B) (iii) (6 out of 8 from A) and (4 out of 6 from B) (iv) (7 out of 8 from A) and ( 3 out of 6 from B) The no, of ways of these selections are:- (i)…
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