Question

6. The ratio of Maths and Science books in
a school library is 4:5. If the number of
Science books is 75, find the number of
Maths books.​

Answer 1

Explanation:

its a question of inverse variation so we have to make a table to solve it...just like the sum which i have solved. i have made one table or a box.

therefore, the value of x is 60.

so 5x will be 5×60= 300

4x will be 4× 60= 240

Answer 2

Answer:

let maths book be 4x and science book be 5x

5x=75

x=15

math book 4*15=60