Find i) The ratio of boys and girls in your class. ii) The ratio of number of door and number of windows of your classroom. iii) The ratio of number of text books and number of note books with you.

The ratio of number of A+G to the number of C+T in DNA of E. Coli species is

The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class strength?

Compare: Find the ratio of number of blue squares to the number of red squares.

In a mathematics class there are 16 boys and 20 girls. Find the ratio of number of boys to the number of girls and express it in the simplest form.

Suppose there are 32 students in a class of which 12 are girls. Find : The ratio of number of boys to total number of students.

Total number of boys and girls in a class is 52. If the number of girls is 10 more than that of boys, find the number of boys.

Find the ratio of gears of your bicycle. Count the number of teeth of the chain wheel and the number of teeth of the sprocket wheel. {number of teeth of the chain wheel} : [number of teeth of Sprocket wheel) This is called gear ratio. Write the number of times the Sprocket wheel turns for every time the chain wheel rotates.