Question

There are Math books and Science books on a large shelf. The ratio of Math books to Science books is 4:5. If there are 27 total books on the shelf, how many Math books are on the shelf?

Answer 1

12 are math

Explanation:

if ratio of math to science is 4 to 5 then 4/9 of 27 are math and 5/9 of 27 are science

27 x 4/9 = 12

Answer 2

12:15

Explanation:

27/9=3

3x4=12

3×5=15

There are 12 maths book's