In a certain town 65 % families own cellphones, 15000 families own scooter and 15 % families own both. Taking into consideration that the families own at least one of the two, the total number of families in the town is

Question

In a certain town 65 % families own cellphones, 15000 families own scooter and 15 % families own both. Taking into consideration that the families own at least one of the two, the total number of families in the town is (A) 20000 (B) 30000 (C) 40000 (D) 50000

Tardigrade Admin · Accepted Answer

x=(65 x/100)+15000-(15 x/100) =30,000

Q. In a certain town $65%$ families own cellphones, $15000$ families own scooter and $15%$ families own both. Taking into consideration that the families own at least one of the two, the total number of families in the town is

20000

30000

40000

50000

$x = \frac{65 x}{100} + 15000 - \frac{15 x}{100}$
$= 30, 000$

Q. In a certain town 65% families own cellphones, 15000 families own scooter and 15% families own both. Taking into consideration that the families own at least one of the two, the total number of families in the town is