Final answer:
To find the percentage of flowers that are lilies, divide the number of lilies by the total number of flowers and multiply by 100. In this case, 25% of the flowers in the bouquet are lilies.
Step-by-step explanation:
To find the percentage of flowers that are lilies, we need to divide the number of lilies by the total number of flowers and then multiply by 100. In this case, there are 3 lilies and 12 flowers in total. So, we calculate: (3/12) x 100 = 25%. Therefore, 25% of the flowers in the bouquet are lilies.