84 Maths books, 90 Physics books and 120 Chemistry books have to be st – McqOptions

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1.	84 Maths books, 90 Physics books and 120 Chemistry books have to be stacked topic wise. How many books will be there in each stack so that each stack will have the same height too ?
A.	12
B.	18
C.	6
D.	21
Answer» D. 21

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