SOLUTION: In a society of 160 families, it was found that 123 families watch Netflix; 124 families watch Hulu; 110 families watch Amazon Prime video; 119 families watch both Amazon Prime vid
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-> SOLUTION: In a society of 160 families, it was found that 123 families watch Netflix; 124 families watch Hulu; 110 families watch Amazon Prime video; 119 families watch both Amazon Prime vid
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Question 1202837: In a society of 160 families, it was found that 123 families watch Netflix; 124 families watch Hulu; 110 families watch Amazon Prime video; 119 families watch both Amazon Prime video and Netflix; 111 families watch Netflix and Hulu; 81 families watch Hulu and Amazon Prime video; and 143 families watch all the 3 platforms. Find:
i. The number of families who watch at least one platform
ii. The number of families who watch exactly one platform. Found 2 solutions by greenestamps, ikleyn:Answer by greenestamps(13200) (Show Source):
If 143 families watch all three platforms, then the number that watch Netflix has to be at least 143; it can't be only 123. And the 123 can't be the number of families that watch Netflix only, because the total number of families is only 160.
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In a society of 160 families, it was found that 123 families watch Netflix; 124 families watch Hulu;
110 families watch Amazon Prime video; 119 families watch both Amazon Prime video and Netflix;
111 families watch Netflix and Hulu; 81 families watch Hulu and Amazon Prime video;
and 143 families watch all the 3 platforms. Find:
i. The number of families who watch at least one platform
ii. The number of families who watch exactly one platform.
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