Question

There is a bag of marbles that has 40% blue marbles, 10% red marbles, 30% green marbles, and 20% black marbles. What is the ratio of red marbles to black marbles?

Answer 1

1/2 :D?

Explanation:

You just need to divide the percentage of red marbles to black marbles.

10% / 20% = 1/2 :D