Question

In a flower basket, the ratio of red roses to white roses is 2 to 3. There are a total of 20 roses in the basket. Determine the number of red roses in the basket.

Answer 1

Let the number of red roses be 2k and white roses be 3k. Then 2k + 3k = 5k = 20, so k = 4.
Number of red roses = 2k = 8.