Mathematics, 25.04.2020 05:46 JeroMii

A survey of 117 consumers found that 81 had a tablet computer, 70 had
a smartphone and 29 had both a smartphone and a tablet computer. Find the number of consumers surveyed who have neither a
smartphone nor a tablet.

Answers: 2

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A survey of 117 consumers found that 81 had a tablet computer, 70 had
a smartphone and 29 had...