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Mathematics, 22.10.2020 02:01 Nayerlin16

In a group of 28 pupils, 12 play the flute only. 6 play the piano only.
9 play neither instrument.
A student is selected at random.
What is the probability the student plays both instruments?

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In a group of 28 pupils, 12 play the flute only. 6 play the piano only.
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