Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-169
Section: Logical Reasoning
Topic: Resolve the Paradox
Difficulty level: Medium

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Network engineer: Two years ago we clipped acoustic loggers to the valves on every main in the district. Since then the number of leaks our crews record and repair each month has risen by half. A logger cannot make a pipe leak; it only listens. Yet the district is losing water at the lowest rate we have ever recorded, and the pressure we run the district at has not changed.

Which one of the following, if true, most helps to explain the discrepancy described above?

ANearly all the leaks a logger picks up would once have run unnoticed for months before the crews knew of them, and the pipe is dug out while each is still small.

BCrews now record every leaking joint along a main as a leak of its own, where they once entered a whole run of pipe as a single leak and sent one crew to dig it up.

CThe district has relaid a tenth of its oldest mains over the same period, and no month has brought a leak on a run of the new pipe.

DThe first leak the crews record on a main in the district usually comes in the month a logger goes on it.

ESome leaks the district's crews record each month are ones a resident reported, not ones a logger found.

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