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Mathematics, 17.10.2019 20:30 qais8691

When 40% of the girls left the school assembly, the ratio of the number of boys to girls became 3 to 4. if there were w girls when the assembly started, what was the total number of boys when the assembly started?

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When 40% of the girls left the school assembly, the ratio of the number of boys to girls became 3 to...
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