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16 votes
16 votes
In a game, a player randomly pulls a card from a stack that contains 2 red, 2 yellow, and 4 black cards. Only yellow cards will be added to the stack. How many yellow cards should be added to the stack to make the chance of pulling a yellow card 50%? Enter the answer in the box.​

User Glenn Mackintosh
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2.4k points

2 Answers

28 votes
28 votes
1 es el answer o the question
User Godinall
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2.5k points
27 votes
27 votes

Answer:

1

Explanation:

R=red Y=yellow B=black

2(R)+4(B)

=6

2(Y)/6(R+B)

2/6 to get 50=50 or 3/6=1/2

you need 1 more yellow

User Electricsheep
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2.6k points