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Question

The colours of cars preferred by people living in a society are shown by the following table. Find the sum of the number of people who prefers black and red colour(one person likes only one colour).

Color Number of People
Black 50
White 30
Green 10
Red 30
Grey 40

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Solution

Color Number of People
Black 50
White 30
Green 10
Red 30
Grey 40

From the table,

The number of people preferring black colour =50

The number of people preferring red colour =30

So, the number of people preferring black and red colour =50+30=80


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