A collector has 100 movie posters and 80 band posters. She wants to sell 20 movie posters but still have her poster collection maintain the same ratio of 100:80. If she sells 20 movie posters, how many band posters should she sell? Complete the explanation to find out how many band posters she should sell

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9 February, 10:32

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Jovanny · Answer 1

100:80=5/4

100-20:?=5/4 or 80:?=5/4

80/5=16

16*4=64

80:64

80-64=16

16 band posters.