Questions of Test: GMAT Critical Reasoning Test


Vitamin C is an essential nutrient for people and some other animal species, since it protects the body against oxidative stress. Because it is well known that some fruit and vegetables contain significant quantity of this vitamin, eating any fruit or vegetables can significantly contribute to preventing oxidative stress.

The argument above is flawed because_______


A theater plans to purchase some new scenery and stage equipment. This will help to attract more visitors but will cost a significant amount of money. The theater manager plans to compensate for these extra costs by increasing prices on food and drinks in the theater café.

Which of the following, if true, would most undermine the theater manager’s plan?  


According to the tax reports provided by citizens of country X, the average annual income of country X citizens in 2010 was $15, 000. However, this figure is probably lower than the real average income of country X citizens.

Which of the following, if true, would most strengthen the argument above?


Advertisement: About one third of people who graduated Milford School of Business have become millionaires and about half of Milford School of Business graduates are top managers of large corporation.

A person who is looking for a business school to apply and I neither a millionaire nor a top manager would most likely apply to Milford School of Business after reading its advertisement if he or she drew which of the following questionable conclusions?


Mr. Jacobs has been teaching logic for fifteen years, so if you need a good logic teacher for your school Mr. Jacobs will be the right choice.

The conclusion drawn above depends on which of the following assumptions?


Chersonese, an ancient city on the Crimean peninsula, has signs of devastation typical to those which appear as a result of strong earthquakes. This allowed some scientists to hypothesize that Chersonese was destroyed by an earthquake. However, this hypothesis is not well-grounded as Crimean peninsula is situated in a region with very low tectonic activity and earthquakes, especially those strong enough to cause any destruction, are very unlikely to occur in that area.

Which of the following, if true, would most undermine the conclusion drawn above?