There are

9
red marbles and
2
blue marbles in a bag.
(a) What is the ratio of blue marbles to red marbles?


(b) What is the ratio of all marbles in the bag to blue marbles?

1 answer

(a) The ratio of blue marbles to red marbles is 2:9.

(b) The ratio of all marbles in the bag to blue marbles is 11:2.