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3 years ago

13

A= 2; b= 3; c= 4; d= 12

2 answers:

Allisa [31]3 years ago

7 0

Bc= (3)(4)= 12
12/12=1

Thepotemich [5.8K]3 years ago

4 0

Bc/12
(3)(4)/12
12/12
1

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The value d represents those who would go to all three places.

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By the same logic, we have:

$B = b + (B \cap C) + (A \cap B) + (A \cap B \cap C)$

$C = c + (A \cap C) + (B \cap C) + (A \cap B \cap C)$

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The total number of family members is the sum of all these values:

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$T = 21$

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