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Question

If 63 % of persons like oranges while 76 % like apples, what can be said about % of persons who like both oranges and apples? Each person eats at least one fruit

A
39%
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B
41%
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C
43%
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D
45%
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Solution

The correct option is A 39%
From the given data

n(O)=0.63
n(A)=0.76

n(AO)=1 as every person eats at least one fruit
n(AO)=n(A)+n(O)n(AB)
1=0.63+0.76n(AB)
n(AB)=1.391
n(AB)=0.39

AB=0.39×100=39
Hence 39% of people eat both orange and apple

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