LAWLAWLAWLAW SCHOOLSCHOOLSCHOOLSCHOOL ADMISSIONSADMISSIONSADMISSIONSADMISSIONS TESTTESTTESTTEST ((((LSATLSATLSATLSAT))))
SECTION1SECTION1SECTION1SECTION1
SECTION 1
Time-35 minutes
24 Questions
Directions: Each groupof questions in this section is based on a set of conditions.
In answering some of the questions. If may be useful to draw a rough diagram
Choose the response that most accurately and completely answers each
question and blacken the corresponding space on your answer sheet
Question 1-6
Eight new students-R, S, T, V,W, X, Y, Z-are being divided among exactly three
classes-class 1, class 2, and class3. Classes 1 and 2 will gain three new students
each: class 3 will gain two new students. The following restrictions apply:
R must be added to class 1.
S must be added to class 3.
Neither S nor W can be added to the same class as Y.
V cannot be added to the same class as Z.
If T is added to class 1, Z must also be added to class 1.
1.Which one of the following is an acceptable assignment of students to the
three classes?
1 2 3
(A) R, T, Y V, W, X S, Z
(B) R, T, Z S, V, Y W, X
(C) R, W, X V, Y, Z S, T
(D) R, X, Z T, V, Y S, W
(E) R, X, Z V, W, Y S, T
2.Which one of the following is a complete and accurate list of classes any one
of which could be the class to which V is added?
(A) class 1
(B) class 3
(C) class 1, class 3
(D) class 2, class 3
(E) class 1, class 2, class 3.
3.If X is added to class 1, which one of the following is a student who must be
added to class 2?
(A) T
(B) V
(C) W
(D) Y
(E) Z
4.If X is added to class 3, each of the following is a pair of students who can be
added to class 1 EXCEPT
(A) Y and Z
(B) W and Z
(C) V and Y
(D) V and W
(E) T and z
5.If T is added to class 3, which one of the following is a student who must be
added to class 2?
(A) V
(B) W
(C) X
(D) Y
(E) Z
6.Which one of the following must be true?
(A) If T and X are added to class 2. V is added to class 3.
(B) If V and W are added to class 1. V is added to class 3.
(C) If V and W are added to class 1. V is added to class 3.
(D) If V and X are added to class 1. V is added to class 3.
(E) If Y and Z are added to class 2. V is added to class 2.
Question 7-12
Four lions-F, G, H, J-and two tigers-K and M-will be assigned to exactly six stalls,
one animal per stall. The stalls are arranged as follows:
First Row: 1 2 3
Second Row: 4 5 6
The only stalls that face each other are stalls 1 and 4, stalls 2 and 5, and stalls
3 and 6. The following conditions apply:
The tigers' stalls cannot face each other.
A lion must be assigned to stall 1
H must be assigned to stall 6.
J must be assigned to a stall numbered one higher than K's stall.
K cannot be assigned to the stall that faces H's stall.
7. Which one of the following must be true?
(A) F is assigned to an even-numbered stall
(B) F is assigned to stall 1
(C) J is assigned to stall 2 or else stall 3
(D) J is assigned to stall 3 or else stall 4
(E) K is assigned to stall 2 or else stall 4
8. Which one of the following could be true?
(A) F's stall is numbered one higher than J's stall
(B) H's stall faces M's stall
(C) J is assigned to stall 4
(D) K's stall faces J'S stall
(E) K's stall is in a different row than J's stall
9. Which one of the following must be true?
(A) A tiger is assigned to stall 2
(B) A tiger is assigned to stall 5
(C) K's stall is in a different row from M's stall
(D) Each tiger is assigned to an even-numbered stall
(E) Each lion is assigned to a stall that faces a tiger is stall
10. If K's stall is in the same row as H's stall which one of the following must be
true?
(A) F's stall is in the same row as J's stall
(B) F is assigned to a lower-numbered stall than G
(C) G is assigned to a lower-numbered stall than M
(D) G's stall faces H's stall
(E) M's stall is in the same row as G's stall
11. If J is assigned to stall 3, which one of the following could be true?
(A) F is assigned to stall 2
(B) F is assigned to stall 4
(C) G is assigned to stall 1
(D) G is assigned to stall 4
(E) M is assigned to stall 5
12. Which one of the following must be true
(A) A tiger is assigned to stall 2
(B) A tiger is assigned to stall 4
(C) A tiger is assigned to stall 5
(D) A lion is assigned to stall 3
(E) A lion is assigned to stall 4
SECTION Ⅱ
Time-35 minutes
24 Questions
Directions: The questions in this section are based on the reasoning contained in
brief statements or passages For some questions more than one of the choices
could conceivably answer the question. However, you are to choose the best
answer that is the response that most accurately and completely answers the
question. You should not make assumptions that are bycommonsense
standards implausible superfluous or incompatible with the passage. After you
have chosen the best
1.The city's center for disease control reports that the rabies eoidemic is more
serious now than it was two years ago: two years ago less than 25 percent of the
local raccoon population was infected, whereas today the infection has spread to
more than 50 percent of the raccoon population. However, the newspaper
reports that whereas two years ago 32 cases of rabid raccoons were confirmed
during a 12-month period in the past 12 months only 18 cases of rabid raccoons
were confirmed.
Which one of the following if true, most helps to resolve the apparent
discrepancy between the two reports?
(A) The number of cases of rabies in wild animals other than raccoons has
increased in the past 12 months.
(B) A significant proportion of the raccoon population succumbed to rabies in
the year before last.
(C) The symptoms of distemper another disease to which raccoons are
susceptible are usually identical to those of rabies.
(D) Since the outbreak of the epidemic, raccoons, which are mormally
nocturnal have increasingly been seen during daylight hours
(E) The number of confirmed cases of rabid raccoons in neighboring cities has
also decreased over the past year
2.Recently, reviewers of patent applications decided against granting a patent
to a university for a genetically engineered mouse developed for laboratory use
in studying cancer. The reviewers argued that the mouse was a new variety of
animal and that rules governing the granting of patents specifically disallow
patents for new animal varieties.
Which one of the following if true most weakens the patent feviewers
argument?
(A) The restrictions the patent reviewers cited pertain only to domesticated
farm animals.
(B) The university's application for a patent for the genetically engineered
mouse was the first such patent application made by the university
(C) The patent reviewers had reached the same decision on all previous
patent requess for new animal varieties.
(D) The patent reviewers had in the past approved patents for genetically
engineered plant varieties.
(E) The patent reviewers had previously decided against granting patents for
new animal varieties that were developed through conventional breeding
programs rather than through genetic engineering.
Questions 3-4
Although water in deep aquifers does not contain disease-causing bacteria,
when public water supplies are arawn from deep aquifers chlorine is often added
to the water as a disinfectant because contamination can occur as a result of
flaws in pipes or storage tanks. Of 50 municipalities that all pumped water from
the same deep aquifer 30 chlorinated their water and 20 did not. The water in all
of the municipalities met the regional government's standards for cleanliness
yet the water supplied by the 20 municipalities that did not chlorinated had less
bacterial contamination than the water supplied by the municipalities that
added chlorine.
3.Which one of the following can properly be concluded from the information
given above?
(A) A municipality's initial decision whether or not to use chlorine is based on
the amount of bacterial contamination in the water source
(B) Water in deep aquifers does not contain any bacteria of any kind
(C) Where accessible deep aquifers are the best choice as a source for a
municipal water supply
(D) The regional government's standards allow some bacteria in municipal
water supplies
(E) Chlorine is the least effective disinfecting agent
4.Which one of the following, if true, most helps explain the difference in
bacterial contamination in the two groups of municipalities?
(A) Chlorine is considered by some experts to be dangerous to human health,
even in the small concentrations used in municipal water supplies.
(B) When municipalities decide not to chlorinate their water supplies, it is
usually because their citxens have voiced objections to the taste and smell of
chlorine.
(C) The municipalities that did not add chlorine to their water supplies also did
not add any of the other available water disinfectants which are more expensive
than chlorine.
(D) Other agents commonly added to public water supplies such as fluoride
and sodium hydroxide were not used by any of the 50 municipalities
(E) Municipalities that do not chlorinate their water supplies are subject to
stricter regulation by the regional government in regard to pipes and water
tanks than are municipalities that use chlorine.
5.The population of songbirds throughout England has decreased in recent
years. Many people explain this decrease as the result of an increase during the
same period in the population of magpies, which eat the eggs and chicks of
songbirds.
Which one of the following, if true, argues most strongly against the
explanation reported in the passage?
(A) Official records of the population of birds in England have been kept for
only the past 30 years.
(B) The number of eggs laid yearly by a female songbird varies widely
according to the songbird's species.
(C) Although the overall population of magpies has increased, in most areas of
England in which the songbird population has decreased the number of magpies
has remained stable.
(D) The population of magpies has increased because farmers no longer shoot
or trap magpies to any greal extent, though farmers.
(E) Although magpies eat the eggs and chicks of songbirds, magpies diets
consist of a wide variety of other foods as well.
6.The introduction of symbols for numbers is an event lost in prehistory, but
the earliest known number symbols, in the form of simple grooves and
scratches on bones and stones date back 20,000 years or more. Nevertheless,
since it was not until 5,500 years ago that systematic methods for writing
numerais were invented, it was only then that any sort of computation became
possible.
Which one of the following is an assumption on which the argument relies?
(A) Grooves and scratches found on bones and stones were all made by
people, and none resulted from natural processes.
(B) Some kinds of surfaces upon which numeric symbols could have been
made in the period before 5,500 years ago were not used for that purpose.
(C) Grooves and scratches inscribed on bones and stones do not date back to
the time of the earliest people.
(D) Computation of any sort required a systematic method for writing
numerals.
(E) Systematic methods for writing numerals were invented only because the
need for computation arose.
7.Politician: Now that we are finally cleaning up the industrial pollution in the
bay, we must start making the bay more accessible to the public for recreational
purposes.
Reporter: But if we increase public access to the bay, it will soon become
polluted again.
Politician: Not true. The public did not have access to the bay, and it got
polluted. Therefore, if and when the public is given access to the bay, it will not
get polluted.
Which one of the following most closely parallels the flawed pattern of
reasoning in the politician's reply to the reporter?
(A) If there had been a full moon last night, the tide would be higher than
usual today. Since the tide is no higher than usual, there must not have been a
full moon last night.
(B) The detective said that whoever stole the money would be spending it
conspicuously by now. Jones is spending money conspicuously, so he must be
the thief.
(C) When prisoners convicted of especially violent crimes were kept in solitary
confinement, violence in the prisons increased. Therefore, violence in the
prisons will not increase if such prisoners are allowed to mix with fellow
prisoners.
(D) To get a driver's license, one must pass a written test. Smith passed the
written test, so she must have gotten a driver's license.
(E) In order to like abstract art, you have to understand it . therefore, in order
to understand abstract art, you have to like it.
8.Because learned patterns of behavior, such as the association of a green
light with "go" or the expectation that switches will flip up for "on" become
deeply ingrained designers should make allowances for that fact in order not to
produce machines that are inefficient or dangerous.
In which one of the following situations is the principle expressed most clearly
violated?
(A) Manufacturers have refused to change the standard order of letters on the
typewriter keyboard even though some people who have over learned to type
find this arrangement of letters bewildering
(B) Government regulations require that crucial instruments in airplane
cockpits-be placed in exactly the same array in all commercial aircraft
(C) Automobile manufacturers generally design for all of their automobiles a
square or oblong lgnition key and a round or oval luggage compartment key.
(D) The only traffic signs that are triangular in shape are "yield" signs.
(E) On some tape recorders the "start" button is red and the "stop" button is
yellow.
9.From 1973 to 1989 total energy use in this country increased less than
10percent. However, the use of electrical energy in this country during this
same period grew by more than 50 percent as did the gross national
product-the total value of all goods and services produced in the nation.If the
statements above are true, then which one of the following must also be true?
(A) Most of the energy used in this country in 1989 was electrical energy.
(B) From 1973 to 1989 there was a decline in the use of energy other than
electrical energy in this country.
(C) From 1973 to 1989 there was an increase in the proportion of energy use
in this country that consisted of electrical energy use
(D) In 1989 electrical energy constituted a larger proportion of the energy
used to produce the gross national product than did any other form of energy.
(E) In 1973 the electrical energy that was produced constituted a smaller
proportion of the gross national product than did all other forms of energy
combined.
10. A fundamental illusion in robotics is the belief that improvements in robots
will liberate humanity from "hazardous and demeaning work" Englineers are
designing only those types of robots that can be properly maintained with the
least expensive, least skilied human labor possible. Therefore, robots will not
eliminate demeaning work-only substitute one type of demeaning work for
another.
The reasoning in the argument is most vulnerable to the criticism that it
(A) ignores the consideration that in a competitive business environment
some jobs might be eliminated if robots are not used in the manufacturing
process
(B) assumes what it sets out to prove, that robots create demeaning work.
(C) Does not specify whether or not the engineers who design robots consider
their work demeaning
(D) Attempts to support its conclusion by an appeal to the emotion of fear,
which is often experienced by people faced with the prospect of losing their jobs
to robots
(E) Fails to address the possibility that the amount of demeaning work
eliminated by robots might be significantly greater than the amount they create
SECTION Ⅲ
Time-35 minutes
26 Questions
Directions: The questions in this section are based on the reasoning contained in
brief statements or passages For some questions more than one of the choices
could conceivably answer the question. However you are to choose the best
answer that is the response that most accurately and completely answers the
question. You should not make assumptions that are answer blacken the
corresponding space on your answer sheet
1.The painted spiders spins webs that are much stickier than the webs spun
by the other species of spiders that share the same habitat. Stickler webs are
more efficient at trapping insects that fly into them. Spiders prey on insects by
trapping them in their webs therefore. If can be concluded that the painted
spider is a more successful predator than its competitors
Which one of the following if true most seriously weakens the argument?
(A) Not all of the species of insects living in the painted spider's habitat are
flying insects
(B) Butterflies and moths which can shed scales are especially unlikely to be
trapped by spider webs that are not very sticky
(C) Although the painted spider's venom does not kill insects quickly. It
paralyzes them almost instantaneously
(D) Stickier webs reflect more light and so are more visible to insects than are
less-sticky webs.
(E) The webs spun by the painted spider are no larger than the webs spun by
the other species of spiders in the same habitat
2.Despite the best efforts of astronomers, no one has yet succeeded in
exchanging messages with intelligent life on other planets or in other solar
systems. In fact, no one has even managed to prove that any kind of
extraterrestrial life exists. Thus, there is clearly no intelligent life anywhere but
on Earth.
The argument's reasoning is flawed because the argument
(A) fails to consider that there might be extraterrestrial forms of intelligence
that are not living beings
(B) confuses an absence of evidence for a nypothesis with the existence of
evidence against the hypothesis
(C) interprets a disagreement over a scientitic theory as a disproof of that
theory
(D) makes an inference that relies on the vagueness of the term "life"
(E) relies on a weak analogy rather than on evidence to draw a conclusion
Questions 3-4
Bart: A mathematical problem that defied solution for hundreds of years has
finally yielded to a supercomputer. The process by which the supercomputer
derived the result is so complex. However, that no one can fully comprehend it.
Consequently, the result is unacceptable.
Anne: In scientific research if the results of a test can be replicated in other
tests, the results are acceptable even though the way they were derived might
not be fully understood. Therefore, if a mathematical result derived by a
supercomputer can be reproduced by other supercomputers following the same
procedure it is acceptable
3. Bart's argument requires which one of the following assumptions?
(A) The mathematical result in question is unacceptable because it was
derived with the use of a supercomputer
(B) For the mathematical result in question to be someone who can fully
comprehend the process by which it was derived.
(C) To be acceptable the mathematical result in question must be reproduced
on another supercomputer.
(D) Making the mathematical result in question less complex would guarantee
its acceptablility.
(E) The supercomputer cannot derive an acceptable solution to the
mathematical problem in question.
4.The exchange between Bart and Anne most strongly supports the view that
they disagree as to
(A) whether a scientific result that has not been replicated can properly be
accepted
(B) whether the result that a supercomputer derives for a mathematical
problem must be replicated on another supercomputer before it can be
accepted
(C) the criterion to be used for accepting a mathematical result derived by a
supercomputer
(D) the level of complexity of the process to which Bart refers in his
statements
(E) the relative complexity of mathematical preblems as compared to
scientific problems
5.