1.

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​

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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