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 |
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