Question

Without looking Tammy takes a marble out of the bag that contains 10 red marbles 15 green Marbles and 25 blue marbles to record its color and return some marble into the back can you repeat this process many times how many times can drink expected to pull out a red marble

Answer 1

10 reds out of 50 marbles, so 1/5 of the time you can expect a red.

who is "drink"?

Answer 2

glizzy