A car dealer has only blue and white cars in his show room. He has 24 blue cars and 30 white cars. He wants to have 60% more blue cars then white. How many whites cars does he have to sell to achieve his sales goal? Select the correct option:
A) 12  B) 13  C) 14  D) 15  E) 16
We can use simple arithmetic to solve this problem by testing our answers.   Lets test B:   If he sold 13 white cars:   24 blue cars and 17 white cars for a total of 41 cars   24/41=58.5% not quite our answer   Lets test 14   If he sold 14 white cars   24 blue cars and 16 white cars for a total of 40 cars   24/40=60%   Our answer is 14
<result>C</result>
A car dealer has only blue and white cars in his show room. He has 24 blue cars and 30 white cars. He wants to have 60% more blue cars then white. How many whites cars does he have to sell to achieve his sales goal?