Critical Reasoning

Verbal Topic 2 - Critical Reasoning
1. Everyone who has graduated from Topnotch High School has an intelligence quotient (IQ) of over 120. Most students with an IQ of over 120 and all students with an IQ of over 150 who apply to one or more Ivy League universities are accepted to at least one of them. The statements above, if true, best support which of the following conclusions?

  A. Every graduate of Topnotch High School with an IQ of 150 has been accepted to at least one Ivy-League school.


  B. If a person is a high-school graduate and has an IQ of less than 100, he or she could not have been a student at Topnotch High School.


  C. At least one graduate from topnotch high school who has applied to at least one Ivy-League university has been accepted to one of them.


  D. If a high-school graduate has an IQ of 150 and is not attending an Ivy-League school, then he or she did not apply to one of them.


  E. If a person has an IQ of 130 and is attending an Ivy-League school, it is possible for him or her to have graduated from Topnotch High School.




2. In response to the increasing cost of producing energy through traditional means, such as combustion, many utility companies have begun investing in renewable energy sources, chiefly wind and solar power, hoping someday to rely on them completely and thus lower energy costs. These sources require significant initial capital investment, but the operating costs are not so high; so the utility companies claim that they will provide stable energy supplies at low costs. As one can easily see, these sources will be less risky for the utilities than non-renewable sources, such as gas, oil, and coal, whose prices can fluctuate dramatically according to availability. The claim of the utility companies assumes which of the following?

  A. The public will embrace the development of wind and solar power.
  B. No new deposits of gas, oil, and coal will be discovered in the near future.
  C. The necessary technology for conversion to wind and solar power is not more expensive than the technology needed to create energy through combustion.


  D. Obtaining energy from non-renewable sources, such as gas, oil and coal, cannot be made less risky.
  E. Weather patterns are consistent and predictable.




3. Doctor: Research shows that adolescents who play GRE games on a regular basis are three times as likely to develop carpal tunnel syndrome as are adolescents who do not play GRE games. Federal legislation that prohibits the sale of GRE games to minors would help curb this painful wrist condition among adolescents. The doctor�s conclusion depends on which of the following assumptions?

  A. Most parents would refuse to purchase GRE games for their adolescent children.
  B. The majority of federal legislators would vote for a bill that prohibits the sale of GRE games to minors.
  C. Not all adolescents who play GRE games on a regular basis suffer from carpal tunnel syndrome.
  D. Playing GRE games is the only way an adolescent can develop carpal tunnel syndrome.
  E. The regular playing of GRE games by adolescents does not produce such beneficial effects as better hand-eye coordination and improved reaction time.

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