24 red marbles
The probability of pulling a red or yellow marble out of a bag of 3 green 8 red 8 yellow and 3 black marbles is 16 out of 22, or about 0.73.
35
50% half of 80 is 40 you
12
Assumed.
3:5 lol
a black one
3/6 or 1/2 or 50%
== ==
24 red marbles
There could be 12 white marbles and 16 red marbles
Use this formula - 100 * red / (blue+red+yellow).
12 blue marbles
12 blue marbles
If there are 20 red marbles and 40 blue marbles, the ratio of red to blue is 1 over 2. The number of white marbles does not matter.
24