Question

In the school library the ratio of science books to social books are same as the ratio of social studies books to math book..If in science there are 450 books and 300 books in social studies..Find the number of books of math are... please do in steps

Answer 1

300 are
all books excluding science

Answer 2

science: social science = 450:300 or 3:2
social science: maths= 300:x
both ratios are same so
300/x=3/2
cross multiplication, we get
3x= 600
x= 200
no. of maths books= 200