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Mathematics, 01.07.2019 16:00 kiarabermudez754
At a school event, the ratio of the number of boys to the number of girls was 3: 4. after some boys left, the ratio became 1: 2. if there were 120 girls at the school event, how many boys left?
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At a school event, the ratio of the number of boys to the number of girls was 3: 4. after some boys...
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