Ratio Proportion

What is the simplest form of the ratio 15:25?

What is the ratio of 500 meters to 2 kilometers?

If $x:5 = 12:20$, what is the value of $x$?

A ratio is a comparison of two quantities of:

What is the inverse ratio of 4:7?

Find the duplicate ratio of 3:4.

Find the sub-duplicate ratio of 25:36.

Divide Rs 600 in the ratio 2:3.

What is the ratio of 45 minutes to 1.5 hours?

The triplicate ratio of 2:3 is:

What is the ratio of 75 paisa to 3 rupees?

Find the value of $k$ if $5:8 = 15:k$.

If the ratio of two numbers is 4:5 and their sum is 81, find the smaller number.

Find the ratio of 8 months to 2 years.

If the sides of two squares are in ratio 2:3, what is the ratio of their areas?

The ratio of 10kg to 500g is:

Which ratio is greater: 3:4 or 5:6?

What is the compound ratio of 2:3 and 4:5?

In a class of 40 students, 15 are girls. What is the ratio of boys to girls?

If $x, 4, 9, 12$ are in proportion, find $x$.