A box contains 15 cards. There are 5 red cards labeled 1, 2, 3, 4, and 5. There are 5 blue cards labeled 1, 2, 3, 4, and 5. There are 5 green cards labeled 1, 2, 3, 4, and 5. One card is drawn from the box. What is the probability that it is a green card with an even number or a blue card?

Question

A box contains 15 cards. There are 5 red cards labeled 1, 2, 3, 4, and 5. There are 5 blue cards labeled 1, 2, 3, 4, and 5. There are 5 green cards labeled 1, 2, 3, 4, and 5. One card is drawn from the box.   What is the probability that it is a green card with an even number or a blue card?

anonymous · Answer

You should end up adding up the even numbers and the blue and green cards, and comparing it to the whole set of numbers. When you get that, you reduce the fraction, and that is your answer. Does this make sense?