Question

a bag contains 10 red pens, 15 blue pens, and 20 black pens. joseph will pull a pen from the bag. when joseph pulls a pen from the bag, how many outcomes are possible?

Answer 1

Total outcomes = 10 + 15 + 20 = 45 total outcomes.
If he pulls red, 10/45
If one red or blue or black, 1/45
If he pulls blue, 15/45
If he pulls black, 20/25