Syllogisms are a kind of logic puzzle. An average score is around 10 to 12 correct out of 20. Enjoy.
logic files
Homework for week 3
Syllogisms Logical Reasoning Directions : Each questions contains six statements followed by four sets of combinations of three. Choose the set
in which the combinations are logically
related.
1.
A. All vegetarians eat meat.
B. All those who eat meat are not vegetarians.
C. All those who eat meat are herbivorous.
D. All
vegetarians
are
carnivorous. E. All those who eat meat are carnivorous.
F. Vegetarians
herbivorous. (a) BCE
2.
(b) ABE
(c) ACD
A. All roses have thorns.
B.
(d) ACF All roses have nectar.
C. All plants with nectar have thorns. D. All shrubs have roses
3.
E.
All shrubs have nectar.
(a) BEF
(b) BCF
(c) BDE
A. No spring is a season. C. Some seasons are autumns.
B.
(d) ACF Some seasons are springs.
D. No seasons are autumns.
E. Some springs are not autumns. (a) DFA
4.
(b) BEF
A. All falcons fly high.
(c) CEB
(d) DEB
B. All falcons are blind.
C. All falcons are birds.
D.
All birds are yellow.
E. All birds are thirsty (a) ABC
5.
(b) BCF
(c) DEF
(d) BCA
A. No wires are hooks.
B.
Some springs are hooks.
C. All springs are wires.
D.
Some hooks are not wires
E. No hook is a spring (a) AED
6.
(b) BCF
(c) BEF
(d) AEF
A. Some abra are dabra.
B.
all abra are cabra
C. All dabra are abra D.
D.
All dabra are not abra
E. Some cabra are abra (a) AEF
7.
(b) BCF
(c) ABD
(d) BCE
A. No plane is a chain
B. All manes are chains
C. No mane is a plane
D. Some manes are plane
E. Some planes are manes (a) ACD 8.
(b) ADF
(c) ACD
(d) BEF
A. Some building are not skyscrapers B. Some skyscrapers are not buildings. C. No structure is a sky scrapper
D. All skyscrapers are structure
E. Some skyscrapers are building
F. Some structure are not building
(a) ACE
(c) FDA
(b) BDF
-1-
(d) ACF
are
Syllogisms Directions : Each of the questions contains six statements followed by four sets of combinations of three, You have to choose that set in which the statements are logically related.
9.
A. Some bubbles are not dubbles.
B. Some
dubbles
are
not
bubbles.
10.
11.
12.
C. None who is rubbles is dubbles.
D. All dubbles are rubbles.
E. Some dubbles are bubbles.
F. Some who are rubbles are not bubbles.
(a) ACF
(c) ABC
(b) DEF
A. Some men are bad.
B. All men are sad.
C. All bad things are men.
D. All bad things are sad.
E. Some sad things are men.
F. Some sad things are bad.
(a) AFE
(c) BDA
(b) BCF
A. All Toms are bright.
B.
(d) BCE No bright Toms are Dicks.
C. Some Toms are Dicks.
D. Some Dicks are bright.
E. No Tom is a Dick.
F. No Dick is a Tom.
(a) ABC
(c) ABF
(b) BEF
A. All witches are nasty.
(d) CDA
B. Some devils are nasty.
C. All witches are devils.
13.
(d) BDF
D.
All devils are nasty.
E. Some nasty are devils.
F. No witch is nasty.
(a) BCD
(c) DEC
(b) CDA
(d) FEC
A. No tingo is a bingo.
B.
All jingoes are bingoes.
C. No jingo is a tingo.
D.
Some jingoes are not tingoes.
E. Some tingoes are jingoes.
F. Some bingoes are not tingoes.
(a) ABC
(c) DFA
(b) ACB
(d) BDA
Directions : Given below are six statements followed by sets of three. You are to mark the option in which the statements are most logically related.
14.
15.
A. Some pins are made of tin.
B. All tin is made of copper.
C. All copper is used for pins.
D. Some tin is copper.
E. Some pins are used for tin.
F. Some copper is used for tin.
(a) ABC
(c) CDA
(b) CEF
A. An ostrich lays eggs.
B. All birds lay eggs.
C. Some birds can fly.
16.
(d) ABE
D.
An ostrich cannot fly.
E. An ostrich is a bird.
F. An ostrich cannot swim.
(a) BEA
(c) DEC
(b) ABE
(d) ECB
A. Some paper is wood.
B. All wood is good.
C. All that is good is wood.
D. All wood is paper.
E. All paper is good.
F. Some paper is good.
(a) BED
(c) FAB
(b) BDF
-2-
(d) FBA
Syllogisms 17.
18.
A. All bricks are tricks.
B.
C. Some that are shrieks are bricks.
D. Some tricks are not bricks.
E. All tricks are shrieks.
F. No tricks are shrieks.
(a) EAC
(c) ABC
(b) BCD
B. All sandal is band.
C. All band is sand.
D. No sand is sandal.
(a) BCA
21.
(b) AFE
(c) DEC B.
Some band is sandal. (d) CEA All life is strife.
C. Some wife is strife.
D. All that is wife is life.
E. All wife is strife.
F. No wife is strife. (b) FCB
(c) ABF
(d) BDE
A. Some crows are flies.
B. Some flies are mosquitoes.
C. All mostquitoes are flies.
D. Some owls are flies.
E. All owls are mosquitoes.
F. Some mosquitoes are not owls
(a) ABC
(c) ADE
(b) CEF
(d) EDB
A. Six is five.
B.
Five is not four.
C. Some five is ten.
D.
Some six is twelve.
E. Some twelve is five.
F.
Some ten is four.
(a) ADE
22.
F.
A. No wife is a life.
(a) BEF
20.
(d) EDC
A. Some sand is band. E. No band is sand.
19.
Some tricks are shrieks.
(b) ABC
(c) AEF
A. Poor girls want to marry rich boys.
B.
(d) EDC Rich girls want to marry rich
boys. C. Poor girls want to marry poor girls. D. Rich boys want to marry rich girls. E. Poor girls want to marry rich girls. F. Rich boys want to marry poor girls. (a) ADE
(b) ABC
(c) BCD
(d) DEF
Directions : Each of the following questions contains six statements followed by four sets of combinations of three. You have to choose that set in which the third statement logically follows from the first two.
23.
A. No bird is viviparous.
B. All mammals are viviparous.
C. Bats are viviparous.
24.
25.
D.
No bat is a bird.
E. No bird is a mammal.
F. All bats are mammals.
(a) ADC
(c) FBA
(b) ABE
(d) AFC
A. No mother is a nurse.
B. Some nurses like to work.
C. No woman is a prude.
D. Some prude are nurses.
E. Some nurse are women.
F. All women like to work.
(a) ABE
(c) FEB
(b) CED
A. Oranges are sweet. C. Some sweets are apples.
B.
(d) BEF All oranges are apples.
D. Some oranges are apples.
-3-
Syllogisms E. All sweets are sour. (a)
26.
27.
DAC
F. (b) CDA
Some apples are sour. (c) BCA
A. Zens are Marutis.
B. Zens are fragile.
C. Marutis are fragile.
D. Opels are fragile.
E. Marutis are Opels.
F. Opels are stable.
(a) ACB
(c) CEA
(b) FED
A. Dogs sleep in the open.
(d) ABC
B. Sheep sleep in doors.
C. Dogs are like sheep.
D.
All indoors are sheep.
E. Some dogs are not sheep.
F. Some open are not sheep.
(a) AFE
(c) ABE
(b) DCA
(d) EFC
(d) None of these
Directions : Each question contains four arguments of three sentences each. Choose the set in which the third statement is a logically conclusion of the first two.
28.
A. Some Xs are Ps. Some Ps are Ys. Some Xs are Ys. B. All Sonas are bright. Some bright crazy. Some Sonas are crazy. C. No faith is strong. Only strong have biceps. No faith has biceps. D. All men are weak. Some weak are strong. Something are weak. (a) A and D
29.
(b) C only
(c) D only
(d) None of these
A. Some icicles are cycles. All cycles are men. Some icicles are men. B. All girls have teeth. No teeth are yellow. No girls are yellow. C. No hand is foot. Some feet are heads. Some hands are heads. D. Every man has a wife. All wives are devoted. No devoted has a husband. (a) A, B and C
(b)
A and B
(c) C and B
(d) A, B and C
and D
30.
A. No, sun is not white. All moon is sun. All moon is white. B. All windows are open. No open space is allocated. All window is closed space. C. No German can fire. All Americans bombard. Both, Germans are Americans can fight. D. No X is Z. No Z is Y. No X is Y. (a) A only
31.
(b) B only
(c) C only
(c) D only
A. All Ts are squares. All squares are rectangular. All Ts are rectangular. B. Some fat are elongated. Some elongated things are huge. Some fat are huge. C. Idiots are bumblers. Bumblers fumble. Idiots fumble. D. Water is good for health. Health food are rare. Water is rare. (a)
