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LOGICAL DEDUCTION : LOGICAL REASONING MCQs

Logical Problems

Total Questions : 121 | Page 4 of 13 pages
Question 31. Fact 1: All dogs like to run.Fact 2: Some dogs like to swim.Fact 3: Some dogs look like their masters.If the first three statements are facts, which of
the following statements must also be a fact?I. All dogs who like to swim look like their
masters.II. Dogs who like to swim also like to run.III. Dogs who like to run do not look like
their masters.
  1.    I only
  2.    II only
  3.    II and III only
  4.    None of the statements is a known fact.
 Discuss Question
Answer: Option B. -> II only


Statement II is the only true statement. Since all dogs like to run, then the ones who like to swim also like to run. There is no support for statement I or statement III.


Question 32. Class A has a higher enrollment than Class B.Class C has a lower enrollment than Class B.Class A has a lower enrollment than Class C.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option B. -> false


From the first two statements, we know that of
the three classes, Class A has the highest enrollment, so the third statement must be false.


Question 33. All the trees in the park are flowering trees.Some of the trees in the park are dogwoods.All dogwoods are flowering trees.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option C. -> uncertain


Although all of the trees in the park are flowering trees, it cannot be determined by the information given whether all dogwoods are
flowering trees.


Question 34. Rover weighs less than Fido.Rover weighs more than Boomer.Of the three dogs, Boomer weighs the least.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option A. -> true


According to the first two statements, Fido
weighs the most and Boomer weighs the least.


Question 35. Blueberries cost more than strawberries.Blueberries cost lest than raspberries.Raspberries cost more than both strawberries
and blueberries.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option A. -> true


Because the first two statements are true, raspberries are the most expensive of the three.


Question 36. All the offices on the 9th floor have wall-to-wall
carpeting.No wall-to-wall carpeting is pink.None of the offices on the 9th floor has pink
wall-to-wall carpeting.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option A. -> true


If no wall-to-wall carpeting is pink and all the offices have wall-to-wall carpeting, none of the offices has pink wall-to-wall carpeting.


Question 37. Apartments in the Riverdale Manor cost less
than apartments in The Gaslight Commons.Apartments in the Livingston Gate cost
more than apartments in the The Gaslight
Commons.Of the three apartment buildings, the Livingston
Gate costs the most.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option A. -> true


Since the Gaslight Commons costs more than
the Riverdale Manor and the Livingston Gate
costs more than the Gaslight Commons, it is
true that the Livingston Gate costs the most.


Question 38. Mara runs faster than Gail.Lily runs faster than Mara.Gail runs faster than Lily.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option B. -> false


We know from the first two statements that
Lily runs fastest. Therefore, the third statement must be false.


Question 39. On the day the Barton triplets are born,
Jenna weighs more than Jason.Jason weighs less than Jasmine.Of the three babies, Jasmine weighs the most.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option C. -> uncertain


We only know that Jasmine weighs more than
Jason. There is no way to tell whether Jasmine
also weighs more than Jenna.


Question 40. Oat cereal has more fiber than corn cereal
but less fiber than bran cereal.Corn cereal has more fiber than rice cereal
but less fiber than wheat cereal.Of the three kinds of cereal, rice cereal has
the least amount of fiber.If the first two statements are true, the third
statement is
  1.    true
  2.    false
  3.    uncertain
 Discuss Question
Answer: Option A. -> true


From the first statement, we know that bran
cereal has more fiber than both oat cereal and corn cereal. From the second statement, we know that rice cereal has less fiber than both corn and wheat cereals. Therefore, rice cereal has the least amount of fiber.


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