Question

A bag contains five yellow marbles, nine red marbles, three blue marbles, six white marbles, and seven black marbles. What is the theoretical probability of pulling a red marble from the bag?

Answer 1

There are 30 marbles in the bag all together. 9 of them are red, so the probability of pulling a red one is. 9/30 .

Answer 2

Desired over total number of marbles


`(9)/(30)`

You can divide by 3 to simplify


`(3)/(10)`