Hello Aspirants. Welcome to Online Reasoning Section with explanation in AffairsCloud.com. Here we are creating Best question samples from Syllogism with explanation, which is common for competitive exams. We have included Some questions that are asked in previous exams !!!
Directions (1 – 10):
(A) only 1st follows
(B) only 2nd follows
(C) either 1st or 2nd
(D) neither 1st nor 2nd
(E) both 1st and 2nd
- Statements: All stems are trees. No tree is a plant. Some plants are roots
Conclusions:
I. Some trees are stems
II. Some roots are not trees(E) both 1st and 2nd
Explanation:
All roots can never be trees. Because if all roots are trees, then some trees will be plants which is not possible (No tree is a house).
All roots are trees is not a possibility, so Some roots are not trees follows. - Statements: All reds are greens. No greens are blues. No greens are whites.
Conclusions:
I. Some whites are not reds
II. Some reds are not blues(E) both 1st and 2nd
Explanation:
All whites are reds is not a possibility. So Some whites are not reds follows. Same with second conclusion. - Statements: All pencils are pens. All pencils are pins. Some pencils are sharpeners.
Conclusions:
I. Some pens are not sharpeners.
II. Some dustres are not sharpeners.(D) neither 1st nor 2nd
Explanation:
There is a possibility that all pens are sharpeners. So Some pens are not sharpeners do not follow. Same with second conclusion. - Statements: Some tigers are dogs. All dogs are lions. No lions are rats.
Conclusions:
I. Some tigers are not lions.
II. No tigers are rats.(D) neither 1st nor 2nd
Explanation:
There is a possibility that all tigers are lions. So Some tigers are not lions do not follow.
II is not definite. - Statements: Some squares are circles. No square is a cone. All circles are marbles.
Conclusions:
I. Some circles are cones
II. Some circles are not cones(B) only 2nd follows
Explanation:
I is not definite.
If all circles are cones is a possibility, then some squares will be cones which is not possible. So Some circles are not cones follows. - Statements: All view are fonts. Some fonts are styles. All styles are reviews.
Conclusions:
I. Some fonts are reviews
II. All views being styles is a possibility(E) both 1st and 2nd
Explanation:
I is definite.
Since there is no negative statement, so a possibility conclusion occurs. - Statements: Some reds are blue. All blue is black. Some black is yellow.
Conclusions:
I. Some reds are black
II. Some yellow is not black(A) only 1st follows
Explanation:
All yellow being black is a possibility so, Some yellow is not black does not follow - Statements: Some pens are pencils. All pens are erasers. No eraser is a duster.
Conclusions:
I. No pen is a duster
II. Some pencils are erasers.(E) both 1st and 2nd
Explanation:
If some pens are duster, then some erasers will be duster which is not possible as per 3rd statement. - Statements: Some plants are trees. No tree is stem. Some stems are petals.
Conclusions:
I. Some petals are plants
II. Some stems are not plants(D) neither 1st nor 2nd
Explanation:
All stems are plants is a possibility, so some trees are not plants does not follow. - Statements: No square is rectangle. All rectangles are circle. No circle is an sphere.
Conclusions:
I. No sphere is rectangle
II. All squares being circle is a possibility.(E) both 1st and 2nd
Explanation:
No sphere is rectangle is true because, if some sphere is rectangle then some circle will be sphere which is not possible as per 3rd statement.
II is a possibility.
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