# Reasoning Questions: Syllogism Set 17

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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

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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

8. 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.

9. 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.

10. 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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