There are 12 books on Algebra and Calculus in our library, the books of the same subject…
Mathematics · JEE Advanced · NTA Exams — Permutations and Combinations
There are 12 books on Algebra and Calculus in our library, the books of the same subject being different. If the number of selections each of which consists of 3 books on each topic is greatest then the number of books of Algebra and Calculus in the library are respectively :
- 3 and 9
- 4 and 8
- 5 and 7
- 6 and 6
Answer
(D) 6 and 6
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