GMAT Critical Reasoning
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Source: GWD
Level: 4
Fact: Asthma, a bronchial condition, is much less common ailment than hay fever, an allergic inflammation of the nasal passages.Fact: Over 95 percent of people who have asthma also suffer from hay fever.
If the information given as facts above is true, which of the following must also be true?
- A Hay fever is a prerequisite for the development of asthma.
- B Asthma is a prerequisite for the development of hay fever.
- C Those who have neither hay fever nor asthma comprise less than 5 percent of the total population.
- D The number of people who have both of these ailments is greater than the number of people who have only one of them.
- E The percentage of people suffering from hay fever who also have asthma is lower than 95 percent.