Question 11

The new trains are designed to require regularly scheduled maintenance between trips less frequently than the old trains.

This statement indicates that the new trains, despite their higher maximum speed, may not be constrained by the same maintenance issues as the older trains. If the new trains can operate more efficiently and with less downtime, this could mean that overall travel times may still improve, regardless of the maximum speed limitations imposed by the tracks.

A) Because they have a reputation for excellent service, the older trains are preferred by many train travelers.

While this option highlights a preference for older trains, it does not address the argument regarding travel time. The preference based on service quality does not weaken the assertion that the new trains cannot operate faster due to track limitations.

B) The cross-country train route includes hills that prevent any train from traveling at its maximum speed.

This option supports the original argument by indicating that terrain may limit the speed of both old and new trains. Therefore, it does not weaken the argument but rather reinforces the notion that maximum speed will not be achievable.

C) The new trains are designed to require regularly scheduled maintenance between trips less frequently than the old trains.

This option introduces a significant factor that could allow the new trains to have a better overall travel time. If the new trains require less maintenance, they may spend more time in operation, potentially mitigating the impact of track speed limitations.

D) Most people who want to travel across the country in less time than it currently takes by train will travel by airplane.

This statement shifts the focus to travel choices rather than addressing the argument about train speeds and travel times directly. It suggests that air travel is preferred for speed, but does not weaken the claim regarding the new trains’ inability to improve travel times on the specified tracks.

E) The railroad's new schedules call for longer stops at each station on the cross-country route.

This option would serve to further lengthen the total travel time for the new trains, reinforcing the argument rather than weakening it. Longer stops would counteract any potential time savings from the new trains' speed.

Conclusion

The correct answer, C, weakens the argument by suggesting that the new trains may have operational advantages that could lead to improved travel times, despite the track speed limitations. Other options either support the original argument or introduce unrelated factors that do not address the core issue of travel time on the specified route. Thus, C provides the most compelling counterpoint to the argument presented.