A bag contains 4 blue coins and 7 red coins. A coin is removed at random and placed by three of the other color. What is the probability that the removed coin is blue?

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asked Mar 22, 2022 187k views

5 votes

A bag contains 4 blue coins and 7 red coins. A coin is removed at random and placed by three of the other color.

What is the probability that the removed coin is blue?

Mathematics
high-school

Edward Louth asked

by Edward Louth

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1 Answer

6 votes

Answer:

The probability is 7/11

Explanation:

This is because there are 7 blue coins that you can grab out of 11 coins in total.

David De Sloovere answered Mar 27, 2022

by David De Sloovere

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