Answer:
Probability to reach A by Boris = [tex]\frac{4}{9}[/tex]
Step-by-step explanation:
Figure with this question is not attached; find the diagram in the picture attached.
If Boris is trying to reach the food stored in area A, number of ways from junction X = 3
Probability of choosing one way = [tex]\frac{1}{3}[/tex]
Similarly, from junction Y there are 3 more options to reach the food.
Probability to reach A from junction Y = [tex]\frac{1}{3}\times \frac{1}{3}=\frac{1}{9}[/tex]
Therefore, probability to reach the food stored in A
= Probability to reach A from junction X + Probability to reach A from junction Y
= [tex]\frac{1}{3}+\frac{1}{9}[/tex]
= [tex]\frac{4}{9}[/tex]
