A jar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. Find the probability of drawing a white or red marble on the first draw.
there is a half chance of pulling a red or white marble, 16+4=20 well there's 40 marbles total so 20/40 is simplefyed as 1/2 hope this help's please crown
