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7 April, 19:53

In one hour at Pete's Pet Store, 25 customers bought items. 12 customers bought items for dogs, and 5 of those customers also bought items for cats. If 4 customers bought items for neither dogs nor cats, how many people bought items for cats only? (Hint: On a piece of paper, draw a Venn diagram to represent the situation) A. 5 B. 7 C. 9 D. 14

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  1. 7 April, 20:01
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    C. 9

    why? because from 25 customers 12 bought for dogs and 4 bought for neither so

    25=12+4+x

    x representing the ones that only bought for cat

    25=16+x

    -16 both sides

    9=x
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