Product of Two Numbers = HCF X LCM of the Two Numbers
84 Maths book...
Question
84 Maths books, 90 physics books and 120 Chemistry books have to be stacked topic-wise. How many books will be there is each stack so that stack will have the same height too?
A
6
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B
21
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C
12
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D
18
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Solution
The correct option is B6 Required books in each stack = HCF of each type of book