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     EduGorilla 
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    A shopkeeper has 420 Science books and 130 Maths books. He wants to stack them so that each stack has the same number of books and they take up the least area of his shelf. Each stack should have one type of book. How many books can be placed in each stack?

    Options :-

    1. 10
    2. 20
    3. 5
    4. 30
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