Question

In a survey of college students, each of the following was found. Of these students, 357 owned a tablet, 291 owned a laptop, 287 owned a gaming system, 191 owned a tablet and a laptop, 202 owned a tablet and a gaming system, 137 owned a laptop and gaming system, 68 owned a tablet, a laptop, and a gaming system, and 24 owned none of these devices. How many college students were surveyed?
(357+291+287)-(191+202+137)+68 = n-24
n = 497

Review how Venn diagrams work for this stuff.

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