A collector has 120 movie posters and 100 band posters. She wants to sell 24 movie posters but still have her poster c
Collection maintain the same ratio of 120:100. If she sells 24 movie posters, how many band posters should she sell? OK
120/100 = 24/x
120x = 2400
x = 20
20
To maintain the same ratio of 120 movie posters to 100 band posters, we can set up a proportion:
120 movie posters / 100 band posters = (120 - 24) movie posters / x band posters
Simplifying the proportion:
120/100 = 96/x
Now, we can cross multiply to solve for x:
120x = 100 * 96
120x = 9600
x = 9600 / 120
x = 80
Therefore, the collector should sell 80 band posters to maintain the same ratio.