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Mathematics, 26.11.2020 22:30 maylasia

The ratio of the number of boys to the number of girls in a dance club is 5 : 6. After 6 more boys join the club, the ratio became 13 : 12. How many people were in the club at the start?

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The ratio of the number of boys to the number of girls in a dance club is 5 : 6. After 6 more boys j...
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