Question

A bag contains three green, four blue and two orange marbles. If a marble is picked at random, then the probability that it is not an orange marble, is __________.

• A. $\frac{1}{4}$
• B. $\frac{1}{3}$
• C. $\frac{4}{9}$
• D. $\frac{7}{9}$

Answer 1

The correct option is D $\frac{7}{9}$

Number of green balls $=3$

Number of blue balls $=4$

Number of orange balls $=2$

$\Rightarrow$ Total number of balls $=9$

Favourable cases of not picking an orange ball $=9-2=7$

Probability of not picking an orange ball $=\frac{7}{9}$