Question

In a parking lot of 240 red and blue cars, the ratio of red cars to blue cars is 3:5. How many red cars are in the parking lot?

Answer 1

set up an equation to solve
you know when you reduce one fraction you will end up with another fraction

red to blue is given by 3:5
the other fraction is given by 240:x

one fraction reduces to the other
setup the equality then cross multiply