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Categorical Syllogisms Quiz III
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The following questions resemble some questions from the "Logical Reasoning" section of the LSAT.

1
Which of the following conclusions can logically be inferred from these sentences? No shoes but loafers are sold in this store. The shoes sold here can be expensive.
A)Only expensive shoes are sold in this store.
B)All expensive shoes are loafers.
C)All loafers are sold in this store.
D)Some loafers are expensive.
E)No expensive loafers are sold in this store.
2
Which of the following exhibits the same logical flaw as this argument? Only children are trapeze artists. Some circus performers are only children. Therefore, some circus performers are trapeze artists.
A)All toddlers are big eaters. Some girls are toddlers. Therefore, some girls are big eaters.
B)Only human beings cool off by perspiring. Some team mascots are human beings. Therefore, some team mascots cool off by perspiring.
C)Only you are an expert on soft-coal mining. Some experts on soft-coal mining are consultants. Therefore, only you are a consultant.
D)Only Hard-Lee-Hott air conditioners are energy-efficient. My air conditioners are Hard-Lee-Hott air conditioners. Therefore, my air conditioners are energy-efficient.
E)Any friend of Pat's is a friend of mine. Any friend of mine is a friend of philosophy. Therefore, any friend of Pat's is a friend of philosophy.
3
Which of the following most closely resembles the reasoning given in this argument? Every successful mechanic uses cast-iron wrenches. Some mechanics use wrenches made of something besides cast iron. So some mechanics are not successful.
A)All valid syllogisms are incapable of surprising you. Some syllogisms are not at all able to surprise you. So some syllogisms are not valid.
B)Everything worth doing is worth doing right. Everything boring is not worth doing right. So boring things are not worth doing.
C)Every good bicycle has hand brakes. Some messengers' bikes are not good bicycles. So some messengers' bikes don't have hand brakes.
D)Every happy adult was once a grouchy teenager. Grouchy teenagers fly into fits of anger. So some happy adults fly into fits of anger.
E)A tape recorder is a sophisticated piece of equipment. Some home appliances are unsophisticated pieces of equipment. Therefore, some home appliances are not tape recorders.







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