1st option: If both car dealers sold 50 cars. Dealer B sold 4 more hybrid cars.
1) Based on what we were told: "12%of the cars sold by Car Dealer A were hybrid cars. 20% of the cars sold by Car Dealer B were hybrids." We can analyze the following alternatives to check whether this is right or wrong, true or false.
2) If both car dealers sold 50 cars. Dealer B sold 4 more hybrid cars.
Let's check both Dealers:
12% of 50 =0.12 x50 =6 and 20% of 50 = 0.2 x 50 = 10
10-6 =4
[tex]\begin{gathered} A)0.12\times50=6 \\ B)0.2\times50=10 \\ True \\ \\ \end{gathered}[/tex]
Since we're dealing with a universe of 50 cars. Then this is true. The other choices we can't state without more information or are false.
