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Cats and dogs

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by nikhilgmat31 » Sun Jul 05, 2015 10:07 pm
C is number of families with cats = 38
D is number of families with Dogs

60 = C + D - Both + None

since both & none are same - we can negate them.

60 = C + D
D = 22

Answer is B.


However if we need to find families with Dogs only then answer is C
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