Explanation (1 to 4):
X,U,Z are at ends of a triangle so they can be at any of b,c,f,g intersections.
Now X cannot be at g since he sees only 2 people.
UZV have to be in a straight line and x sees only U and z thus
X must be at b, V at e, Z at f, U at g.
Since Y can see W and W cannot see either V or Z thus
Y must be at k and W must be at at l.
– V –
X Z –
– U Y
– – W
Now all questions can be answered.
Q. 1: Who is standing at intersection a?
1. V
2. W
3. No one
4. Y
Correct Answer: Option 3
Correct Answer: Option 1
Q. 3: What is the minimum number of street segments that X must cross to reach Y?
1. 1
2. 2
3. 3
4. 4
Correct Answer: Option 2
Q. 4: Should a new person stand at intersection d, who among the six would she see?
1. W and X only
2. U and W only
3. V and X only
4. U and Z only
Correct Answer: Option 1
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