Question

A maze with following pattern is given. An insect has to reach point R.It can only land only on R if it lands on the adjacent cubes. What is the probability of it reaching R.

• A. 1/4
• B. 2/3
• C. 2/7
• D. 1/6

Answer 1

The correct option is A 1/4

P(It lands on R)= P( S to R)+ P(Q to R)

From Q it can move in 2 directions.

P(Landing on R)= $\frac{1}{6}\times 1+\frac{1}{6}\times \frac{1}{2}=\frac{1}{4}$