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Social Studies, 05.05.2021 20:20 kev9369

There are 600 children on a field. 30% of them were boys. After 5 teams of boys joined the children on the field, the percentage of children who were boys increased to 40%.
How many boys were there in the 5 teams altogether?
190​

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There are 600 children on a field. 30% of them were boys. After 5 teams of boys joined the childre...
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