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Mathematics, 07.05.2021 04:30 kate5895

[3 A group of girls calculated their average collection from a fundraising.
They discovered that if one of them collected $200 more, their average
collection would be $240.
If one of them collected $340 less, their average collection would be $180.
How many girls were there in the group?
[3

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[3 A group of girls calculated their average collection from a fundraising.
They discovered t...

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