Mathematics, 14.10.2021 22:30 brandisouthern9

In Psychology 101, the ratio of the number of juniors to the number of seniors is 3:1. After one junior drops the class and three more seniors sign up, the ratio of the number of juniors to the number of seniors becomes 5:2. How many students are in the class after these changes?

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In Psychology 101, the ratio of the number of juniors to the number of seniors is 3:1. After one jun...

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