JEE Mains · Maths · STD 11 - 6. permutation and combination
There are \(3\) sections in a question paper and each section contains \(5\) questions. A candidate has to answer a total of \(5\) questions, choosing at least one question from each section. Then the number of ways, in which the candidate can choose the questions, is
- A \(1500\)
- B \(2255\)
- C \(3000\)
- D \(2250\)
Answer & Solution
Correct Answer
(D) \(2250\)
Step-by-step Solution
Detailed explanation
\(\begin{array}{lll} \text { A } & \text { B } & \text { C } \\ \hline 5 & \text { 5 } & \text { 5 } \\ \text { 1 } & 2 & 2 \\ \text { 2 } & 1 & 2 \\ 2 & 2 & 1 \\ 1 & 1 & 3 \\ 1 & 3 & 1 \\ 3 & 1 & 1 \end{array}\) Total number of selection…
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