Mathematics, 03.10.2021 07:40, Person51761

In a shop, 380 people buy socks, 150 people buy shoes and 200 people buy belt. If there are total 580 people who bought either socks or shoes or belt and only 30 people bought all the three things? So how many people bought exactly two things.

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In a shop, 380 people buy socks, 150 people buy shoes and 200 people buy belt. If there are total 58...