A box contains 24 marbles some are green and others are blue If a marble is drawn at random fro...........

Quantitative Aptitiude (CLAT) Probability

A box contains 24 marbles, some are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is 2/3. The number of blue balls in the jar is

Explanation:

Total number of marbles = 24
Let the total number of green marbles be x.
Then, total number of blue marbles = 24 − x
P (getting a given marble)
According to the condition given in the question,
Therefore, total number of green marbles in the jar = 16
Hence, total number of blue marbles = 24 − x= 24 − 16 = 8