Question

A bag contains a total of 100 black and white marbles. Without looking in marble is chosen, recorded, and placed back in the bag. The student records a black marbles and two white marbles. Predict the number of black marbles in the bag.

Answer 1

Well at first i thought that maybe it was 50/50 which it could be but honestly the number of black marbles could be anything below 50.

Answer 2

Answer: 200

Explanation:

Ok, from the amount of ball picked .

He picked two white and one black.

And there are 100 black balls in the air bag, so the ratio of pick is 1:2.

From the ratio of pick we can predict the amount of white balls.

I.e 2*100 = 200 balls are white