A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she takes a red

Question

2 years ago

8

A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she takes a red

marble is 1 in 5. Yasmine returns the marble to the bag and adds ﬁve more red marbles to the bag. The probability that she takes one red marble at random is now 1 in 3. How many red marbles were originally in the bag?

Mathematics

1 answer:

goldenfox [79] · Answer 1 · 2022-06-28T04:23:13+03:00

goldenfox [79]2 years ago

3 0

There was one red marble because it said that the probability of choosing a red marble is 1/5 so the other marbles are blue.
<span>Hope this helps. </span>