Question

The ratio of red cars to blue cars in a parking lot was 5:3 if there were 40 red cars how many blue cars were there

Answer 1

It would be 24 blue cars. ( I can't show the work because my camara is not working)

Answer 2

24 blue cars

Explanation:

Let

• r = number of red cars

• b = number of blue cars

The ratio of red cars to blue cars in a parking lot was 5:3, that is,

r/b = 5/3

If there were 40 red cars (r = 40),

40/b = 5/3

We use the Cross Products Property of Proportions.

40 × 3 = b × 5

120 = b × 5

b = 120/5

b = 24

There were 24 blue cars.