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21-03-2019
Mathematics

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WILL MARK BRAINLIEST, IF ANSWER IS CORRECT!

A bag contains 4 blue coins and 8 red coins. A coin is removed at random and replaced by three of the other color.

Part 3 out of 3:

If instead the first coin removed is red, what is the probability of drawing a red coin after the three blue coins are put in the bag to replace the red one?

Respuesta :

22-03-2019

it would be 7/14, or 1/2. There are seven red and blue coins, so it would be a 50 50 shot.

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