Comprehension Passage
Direction: Eight cities P through W. They are connected with one-way roads which are from P to Q, P to S, Q to R, Q to T, R to U, S to T, S to V, W to T, T to U and V to W. Each road is 20 km length.
If a person goes from city P to T via shortest route. What is the distance covered by him? Assume that no city can be visited twice.
1
60 km
2
20 km
3
80 km
4
40 km