Question

in a school library the ratio of mathematics books to science books is equal to ratio of science books to hindi books. If there are 450 science books and 30 hindi books. Find the percentage of maths books and science books​

Answer 1

Answer:

in a school library the ratio of mathematics books to science books is equal to ratio of science books to hindi books. If there are 450 science books and 30 hindi books. Find the percentage of maths books and science books

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

∴ No. of Maths books =x=675.