Question

who will give corrcrt answer i will maake him brainlist

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?

Answer 1

$\huge\mathfrak{Brainliest\:plz}$

Hi everyone.
I got the right answer to this, but only through experimentation. Eg 1 4 5; 2, 8, 10; 3, 12, 15; 4, 16, 20;
5, 20, 25; so adding 5 here to the Reds gives me the right fraction. Can someone please show me how to do this algebraically?
Thanks


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 



1/5.
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 1/3.

Answer 2

Answer:

The probability that Yasmine takes red ball = 1/3

Step-by-step explanation:

Hope this helps