Answer:
A ratio of 15 to 30 can be written as 15 to 30, 15:30, or 15/30. Furthermore, 15 and 30 can be the quantity or measurement of anything, such as students, fruit, weights, heights, speed and so on.
A ratio of 15 to 30 simply means that for every 15 of something, there are 30 of something else, with a total of 45.
