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Mathematics, 22.07.2019 13:30 winterblanco
Forty-two musicians were asked if they play the piano and/or guitar. twenty-six people played the guitar. thirty-three played the piano. nineteen said they played both the piano and the guitar. play piano don't play piano total play guitar 19 7 26 don't play guitar 14 ? ? ? ? total 33 ? ? 42
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Forty-two musicians were asked if they play the piano and/or guitar. twenty-six people played the gu...
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