Question

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:

पर्याय

• 13

• 12

• 16

• 8

Answer 1

8

Explanation:

Total number of marbles = 24

probability of picking green marbles = ${\displaystyle \frac{2}{3}}$

probability of picking blue marbles = ${\displaystyle 1-\frac{2}{3}=\frac{1}{3}}$

${\displaystyle \frac{1}{3}=\frac{\text{x}}{24}}$

x = 8