Passage

Eight railway stations A, B, C, D, E, F, G, and H are connected either by two-way passages or one-way passages. One-way passages are from C to A, E to G, B to F, D to H, G to C, E to C, and H to G. Two-way passages are between A and E, G and B, F and D, and E and D.

QUESTION

CSAT

Medium

Reasoning

Prelims 2017

If the route between G and C is closed, which one of the following stations need not be passed through while travelling from H to C?

Select an option to attempt

Explanation

The route from H to C involves the following steps:

H to G: Travel via the one-way passage H → G. G to B: From G, use the two-way passage G ↔ B to reach B. B to F: From B, use the one-way passage B → F. F to D: From F, use the two-way passage F ↔ D to reach D. D to E: From D, use the two-way passage E ↔ D to reach E. E to C: From E, use the one-way passage E → C. Therefore, the stations passed through are: H → G → B → F → D → E → C.

Conclusion:

Among the options provided, station A is not part of the route from H to C.

Therefore, the correct answer is C. A.