10. A marketing firm determined that, of 200 households surveyed, 80 used neither
Brand Anor Brand B soap, 60 used only Brand A soap, and for every household
that used both brands of soap, 30 used only Brand B soap. How many of the 200
households surveyed used both brands of soap?
a) 40
b) 30
c) 20
d) 15
Answers
Answered by
2
Step-by-step explanation:
sorry i can't tell you now ..
i will tell you in the morning...
Answered by
1
Answer:
d is correct answer.that is 15.
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