1.

Two brother X and Y appeared for an exam. Let A be the event that X is selected and B is the event that Y is selected.The probability of A is $$\frac{{1}}{{7}}$$ and that of B is $$\frac{{2}}{{9}}$$. Find the probability that both of them are selected.

A. $\frac{{1}}{{63}}$$
B. $\frac{{2}}{{35}}$$
C. $\frac{{2}}{{63}}$$
D. $\frac{{9}}{{14}}$$
Answer» D. $\frac{{9}}{{14}}$$


Discussion

No Comment Found

Related MCQs