In a certain town, 25% of the families own a phone and 15% own a car; 65% families own neither a phone nor a car and 2,000 families own both a car…

In a certain town, $\displaystyle 25$% of the families own a phone and $\displaystyle 15$% own a car ; $\displaystyle 65$% families own neither a phone nor a car and $\displaystyle 2,000$ families own both a car and a phone. Consider the following three statements :

$\displaystyle 5$% families own both a car and a phone.

$\displaystyle 35$% families own either a car or a phone.

$\displaystyle 40,000$ families live in the town.

Then,