LAST试题整理

LAST 试题整理 1 SECTION 1Time 35 minutes23 Questions Questions 1 6 A man buys three outfits X Y and Z each of which consists of two articles of clothing Each of the articles of clothing is either brown gray or navy At least one of the outfits is made up of two articles different in color from one another No more than two of the outfits contain the same combination of colors Outfit X contains at least one navy article of clothing Outfit X contains at least one brown article of clothing and does not contain a gray article 1 Which one of the following can be the colors of the man s outfit s A X gray and navy Y brown and gray Z gray and gray B X brown and gray Y brown and navy Z gray and gray C X navy and navy Y brown and brown Z brown and navy D X brown and navy Y brown and navy Z brown and navy E X navy and navy Y brown and brown Z navy and navy 2 If outfits X and Y each consist of one brown article and one navy article of clothing what combinations for outfit Z A 2 B 3 C 4 D 5 E 6 3 If outfit Z does not contain two brown items of clothing what is the maximum number of items of clothing in the three outfits that can be navy A 1 B 2 C 3 D 4 E 5 4 If outfit Y consists of two brown articles of clothing and outfit Z consists of two navy items what is the total number of possible color combinations for outfit X A 1 B 2 C 3 D 4 E 5 5 Which one of the following color combinations for outfit Z would be acceptable under any of the acceptable color combinations for outfits X and Y A gray and gray B brown and gray C brown and brown D brown and navy E navy and navy 6 If no two outfits contain the same color combination but each contains at least one navy item which one of the following is a complete and accurate list of the possible combinations for outfit X A gray and navy B brown and navy C navy and navy D gray and navy brown and navy E gray and navy navy and navy GO ON TO THE NEXT PAGE Question 7 11 Five seats on a train are arranged in two rows that face each other The seats in row 1 are seat 1 and seat 2 The seats in row 2 are seat 3 seat 4 and seat 5 in that order Seat 1 is directly across from seat 3 Seat 2 is directly across from seat 4 Seat 5 is not directly across from any other seat Three women Betty and Carol and two men David Edmund each must be seated in one of me five seats one person to a seat Betty sits in seat 4 Carol sits next to neither Betty nor David Alice does not sit directly across from Carol 7 If Edmund sits directly across from Betty which one of the following must be true A Alice does not sit directly across from anyone B Alice sits directly across from David C Alice sits next to Edmund D David sits next to Alice E David sits next to Edmund 8 If Edmund does not sit directly across from anyone which one of the following is a complete and accurate list of those other than Edmund who cannot sit in seat 1 A Betty B Carol C David D Betty and Carol E Betty and David 9 If none of the five passengers sits directly across from a passenger of the same sex how many seating arrangements of the five passengers are possible A exactly 0 B exactly 1 C exactly 2 D exactly 3 E exactly 4 10 How many of the seats could be the one Alice selects as her seat A 1 only B 2 only C 3 only D 4 only E 5 only 11 How many different seating arrangements of the passengers might there be for row2 A 2 B 3 C 4 D 5 E 6 Question 12 17 Six people Julio Kevin May Norma Olivia and Tamio participate in a track meet Two of them enter the marathon two enter the relay and two enter the sprint Each participant enters only one event If Kevin enters the marathon then both Julio and May enter the relay and if both Julio and May enter the relay then Kevin enters the marathon If Norma does not enter the sprint then Tamio enters the relay If Olivia enters the relay then Julio does not enter the relay Olivia and Tamio do not both enter the relay 12 If Kevin enters the marathon then which one of the following cannot be true A Julio enters the relay and Norma enters the sprint B Olivia enters the marathon and Norma enters the sprint C Tamio enters the marathon and Olivia enters the sprint D Tamio enters the relay and Olivia enters the sprint E Tamio enters the marathon and May enters the sprint 13 If Norma enters the marathon then which one of the following cannot be true A Both Kevin and Olivia enter the sprint B B Kevin enters the relay and Olivia enters the sprint C Kevin enters the marathon and May enters the relay D Julio enters the marathon and May enters the relay E Julio enters the marathon and Kevin enters the relay 14 If both Kevin and Olivia enter the relay then which one of the following must be true A Julion and Tamio enter the marathon B May enters the marathon C May enters the sprint C Tamio enters the sprint D Norma enters the sprint 15 If both Julio and Kevin enter the same event then which of the following can be true Julio enters the relay May enters the marathon Olivia enters the relay A only B only C only D and only E and 16 If Norma and Olivia each enter different events then which one of the following cannot be true A Kevin and Olivia enter the marathon B Julio and Norma enter the relay B May and Olivia enter the relay D Norma and Tamio enter the relay E Olivia enters the sprint and Tamio enters the relay 17 If both Julio and Kevin enter the relay then which one of the following must be false A May and Norma enter the marathon B May and Olivia enter the marathon C Norma and Tamio enter the sprint D May and Norma enter the sprint E May enters the sprint and Tamio enters marathon Questions 18 23 Seven lights J K L M N O and P have only two possible settings on or off They are arranged on a particular electric circuit as follows If K is on L is off if K is off L is on J and N cannot both be on If M is off either J or N is on if either J or N is on M is off If P is on L is on If O is off N is off if O is on N is on Assume that the circuit is working as designed 18 Any of the following can be true EXCEPT A J and O are both off B K and N are both off C C K and P are both on D L and M are both on E N and O are both on 19 If L and O are on which one of the following must be true A J is and K is off B J is off and N is on C K is off and M is on C K is off and P is on D M is off and P is on 20 Which one of the following can be true A Only J K and M are off B Only J L and M are off C Only K M and O are off D Only L N and O are off E Only M N and O are off 21 If P is on what is the maximum number of lights that can be off A 2 B 3 C 4 D 5 E 6 22 What is the minimum number of lights that must be on A 0 B 1 C 2 D 3 E 4 23 If J is on which one of the following could be a complete and accurate list o f the remaining lights that are also on A K L and M B L N and P C L O and P D M N and O E L and P LSAT 全真题 2SECTION 1Time 35 minutes24 Questions 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 A R T Y V W X S Z B R T Z S V Y W X C R W X V Y X 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 F 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 Question 13 18 On an undeveloped street a developer will simultaneously build four houses on one side numbered consecutively 1 3 5 and 7 and four houses on the opposite side numbered consecutively 2 4 6 and 8 Houses 2 4 6 and 8 will face houses 1 3 5 and 7 respectively Each house will be exactly one of three styles ranch split level or Tudor according to the following conditions Adjacent houses are of different styles No split level house faces another split level house Every ranch house has at least one Tudor house adjacent to it House 3 is a ranch house House 6 is a split level house 13 Any of the following could be a Tudor house EXCEPT house A 1 B 2 C 4 D 7 E 8 14 If there is one ranch house directly opposite another ranch house which one of the following could be true A House 8 is a ranch house B House 7 is a split level house C House 4 is a Tudor house D House 2 is a split level house E House 1 is a ranch house 15 If house 4 is a Tudor house then it could be true that house A 1 is a Tudor house B 2 is a Tudor house C 5 is a Tudor house D 7 is a Tudor house E 8 is a Tudor house 16 On the street there could be exactly A one ranch house B one Tudor house C two Tudor houses D four ranch houses E five ranch houses 17 If no house faces a house of the same style then it must be true that house A 1 is a split level house B 1 is a Tudor house C 2 is a ranch house D 2 is a split level house E 4 is a Tudor house 18 If the condition requiring house 6 to be a split level house is suspended but all other original conditions remain the same the any of the following could be an accurate list of the styles of houses 2 4 6 and 8 respectively EXCEPT A ranch split level ranch Tudor B split level ranch Tudor split level C split level Tudor ranch split level D Tudor ranch Tudor split level E Tudor split level ranch Tudor Questions 19 24 Within a tennis league each of five teams occupies one of five positions numbered 1 through 5 in order of rank with number 1 as the highest position The teams are initially in the order R J S M L with R in position 1 Teams change positions only when a lower positioned team defeats a higher positioned team The rules are as follows Matches are played alternately in odd position rounds and in even position rounds In an odd position round teams in position 3 and 5 play against teams positioned immediately above them In an even position round teams in position 2 and 4 play against teams positioned immediately above them When a lower positioned team defeats a higher positioned team the two teams switch positions after the round is completed 19 Which one of the of following could be the order of teams from position 1 through position 5 respectively after exactly one round of even position matches if no odd position round has yet been played A J R M L S B J R S L M C R J M L S D R J M S L E R S J L M 20 If exactly two rounds of matches have been played beginning with an odd position round and if the lower positioned teams have won every match in those two rounds then each of the following must be true EXCEPT A L is one position higher than J B R is one position higher than L C S is one position higher than R D J is in position 4 E M is in position 3 21 Which one of the following could be true after exactly two rounds of matches have been played A J has won two matches B L has lost two matches C R has won two matches D L s only match was played against J E M played against S in two matches 22 If after exactly three rounds of matches M is in position 4 and J and L have won all of their matches then which one of the following can be true A J is in position 2 B J is in position 3 C L is in position 2 D R is in position 1 D S is in position 3 23 If after exactly three rounds M has won three matches and the rankings of the other four teams relative to each other remain the same then which one of the following must be in position 3 A J B L C M D R E S 24 If after exactly three rounds the teams in order from first to fifth position are R J L S and M then which one of the following could be the order from first to fifth position of the teams after the second round A J R M S L B J L S M R C R J S L M D R L M S J E R M L S J LSAT 全真题 三 SECTION 1Time 35 minutes 24 Questions Questions 1 6 Seven students fourth year students Kim and Lee third year students Pat and Robin and second year students Sandy Tety and Val and only those seven are being assigned a rooms of equal size in a dormitory Each room assigned must have either one or two or three students assigned to it and will accordingly be called either a single or a double or a triple The seven students are assigned to moms in accordance with the following conditions Lio fourth year student can be assigned to a triple No second year student can be assigned to a single Lee and Pobin must not share the same room Kim and Pat must share the same room 1 Which one of the following is a combination of rooms to which the seven students could be assigned A two triples and one single B one triple and four singles C three doubles and a single D two doubles and three singles E one double and five singles 2 It the room assigned to Robin is a single which one of the following could be true A There is exactly one double that has a second year student assigned to it B Lee is assigned to a single C Sandy Fat and one other student are zseigned to a triple together D Lexically three of the rooms assigned to the students are singles E Exactly two of the rooms assigned to the students are doubles 3 Which one of the following must be true A Lee is assigned to a single B Pat shares a double with another student C Robin shares a double with another student D Two of the second year students share a double with each other E Neither of the third year students is assigned to a single 4 If Robin is assigned to a triple which one of the following must be true A Lee is assigned to a single B Two second year students share a double with each other C None of the rooms assigned to the students is a single D Two of the rooms assigned to the students are singles E Three of the rooms assigned to the students are singles 5 If Terry and Val assigned to different doubles from each other other then it must be true of the students rooms that exactly A one is a single B two are singles C two are doubles D one is a triple E two are triples 6 Which one of the following could be true A The two fourth year students are assigned to singles B The two fourth year students share a double with each other C Lee shares a room with a second year student D Lee shares a room with a third year student E Pat shares a triple with two other students Questions 7 11 A worker will insert colored light bulbs into a billboard equipped with exactly three light sockets which are labeled lights 1 2 and 3 The worker has three green bulbs three purple bulbs and three yellow bulbs Selection of bulbs for the sockets is governed by the following conditions Whenever light 1 is purple light 2 must be yellow Whenever light 2 is purple light 1 must be green Whenever light 3 is either purple or yellow light 2 must be purple 7 Which one of the following could be an accurate list of the colors of light bulbs selected for lights 1 2 and 3 respectively A green green yellow B purple green green C purple purple green D yellow purple green E yellow yellow yellow 8 If light 1 is yellow then any of the following can be true EXCEPT A Light 2 is green B Light 2 is purple C Light 3 is green D Light 3 is purple E Light 3 is yellow 9 There is exactly one possible color sequence of the three lights if which one of the following is true A Ligh