Free GMAT Practice Question

Question 1 of 1
ID: GMAT-VR-CR-020
Section: Verbal Reasoning - Critical Reasoning (CR)
Topic: Find the Assumption
Difficulty level: Medium

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A certain water utility bills each household a fixed charge plus an amount per unit used. It compared households that had chosen to install a smart meter, which displays use and cost as water runs, with otherwise similar households that had not. In the year after installation the metered households used 9 percent less water than the others. The utility now plans to fit meters in every household it serves, expecting water use to fall by about 9 percent.

The utility's expectation rests on which of the following assumptions?

AHouseholds that set out to reduce their water use are likely to install a smart meter.

BEvery household that receives a smart meter will use less water than it used before.

COther utilities that have installed smart meters have recorded comparable reductions in water use.

DHouseholds that installed a smart meter were not already unusually keen to cut their water use.

EThe utility's revenue will not fall once every household it serves has a smart meter.

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