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out of 20 books in a shelf,7 are of physics, 5 are of chemistry and remaining are of methamatics what are the numbers of books for methamatics |
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Answer» 8 mathematics BOOKS are there
TOTAL books= 20 physics books= 7 chemistry books= 5 mathematics books= X 20 = 7+5+ x 20 = 12 + x 8=x |
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