Math Please Hurry DUE AT 10:30 and i dont understand

Question

in a florist shop, the ratio of roses to tulips is 5:3 . The shop has 72 tulips on friday morning. How will the ratio of roses tulips change if the florist uses half of each type of flower to fill an order for a wedding?

Answer 1

roses/tulips = 5/3

72 tulips on Friday morning

r/t = 5/3 = r/72

5 = r/24

r = 5x24 = 120 roses

120/72 = 5/3

the florist uses half of each to fill an order, 60 roses and 36 tulips

leaving a ratio of 60/36 = 10/6 = 5/3 = the same ratio in before filling the order