In a school library, the ratio of Mathematics books to Science books is the same as the ratio of Science books to Hindi books. If there are 450 books in Science and 300 books in Hindi Find the number of books in Mathematics.
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Answer:
No. of science books =450
No. of hindi books =300
Ratio of science books to hindi books =450:300
=
330
450
=3:2
Let no. of Mathematics books =x
Ratio of Maths to Science books =x:450=3:2
=
450
x
=
2
3
[Cross multiply]
=2x=3×450
∴x=
2
3×450
x=675