40 students were surveyed about their favourite singer.24 liked Katy Perry.12 liked Enrique Iglesias.7 liked both.How many students like only one of them ?

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Solution

The correct option is D
22

Number of students who liked one or the other = 24-7+12-7 = 17+5 = 22

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40 students were surveyed about their favourite singer.24 liked Katy Perry.12 liked Enrique Iglesias.7 liked both.How many students like only one of them ?

The correct option is D 22 Number of students who liked one or the other = 24-7+12-7 = 17+5 = 22

The correct option is D
22

Number of students who liked one or the other = 24-7+12-7 = 17+5 = 22