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A box is filled with 10 yellow cards, 3 green cards, and 2 brown cards. A card is chosen at random from the box. What is the probability that it is a yellow or a
brown card?
Write your answer as a fraction in simplest form.

Respuesta :

Answer:

4/5

Step-by-step explanation:

The total number of cards is 15. Pretend that the yellow and brown cards are one big group of blue cards. Now, the problem is asking for the number of blue cards over the total number of cards, which is (10+2)/15 = 12/15 = 4/5.

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