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84 Maths books, 90 Physics books and 120 Chemistry books have to be stacked topic wise. How many books will be their in each stack so that each stack will have the same height too?

Sun ki Harmful rays se kaise bachen? Or jaaniye sunscreen ke raaz..!!

Two sets of English and social science books containing 336 and 96 respectively in a library have to be stacked in such a way that an the books are stored topic wise and the height of each stack is the same. Assuming that the books are of the same thickness, determine the number of stacks. What are the characteristics of library?

Three sets of English, Hindi and Mathematics books have to be stacked in such a way that all the books are stored topic wise and the height of each stack is the same. The number of English books is 96, the number of Hindi books is 240 and the number of Mathematics books is 336. Assuming that the books are of the same thickness, determine the number of stacks of English, Hindi and Mathematics books.