Monday, 4 July 2016

Night Class: Reasoning Quiz


Directions (Q. 1- 5): In each of the question below, two/three statements are given followed by conclusions /group of conclusions numbered I and II. You have to assume all the statement to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusion logically follows from the information given in the statements. Give answer:

1) If only conclusion I follows.
2) If only conclusion II follows.
3) If either conclusion I or conclusion II follows.
4) If neither conclusion I nor conclusion II follows.
5) If both conclusion I and II follow.

1. 

Statements: 
No fruit is basket. 
No red is black. 
Some black are fruits.

Conclusion: 
I. Some red are not fruits. 
II. Some black are not basket.

2.

Statements: 
No phone is a camera. 
All cameras are tablets. 
Some tablets are batteries.

Conclusion: 
I. Some batteries are cameras. 
II. Some phones are batteries.

3. 

Statements: 
All desks are table. 
No table is a pen. 
All pens are pencils.

Conclusion: 
I. Some pencils are desks. 
II. No pencil is a desk.

4. 
Statements: 
All pets are animals. 
All pets are wild.

Conclusion: 
I. Some animals are wild. 
II. Some pets being not wild is a possibility.

5. 
Statements: 
Some poems are toys. 
All toys are black.

Conclusion: 
I. At least some poem's are black. 
II. At least some black are toys.

Directions (Q. 6-8): Read the following information carefully to answer the given questions.

M % N means M is son of N.
M – N means M is wife of N.
M ÷ N means M is aunt of N.
M + N means M is sister of N.
M × N means M is father of N.

6. Which of the following means P is the grand father of D?
1) N × P + D ÷ I + K 
2) P × N + I ÷ D + K 
3) D × P + N ÷ K + I 
4) D % P + N ÷ I + K 
5) None of these

7. Which of the following statements proves that there are two males in the family?
1) A × J + K ÷ T 
2) M × T + G ÷ L 
3) G ÷ A × Q + E 
4) L + P ÷ R + C 
5) None of these

8. Which of the following means P is married to S?
1) I + K ÷ P + S 
2) P × I + K % S 
3) P × J – K × S 
4) R – S × P % X 
5) None of these


Answers:

1. 2

No red is black (E) + some black are fruits (I) = E + I = O* = Some fruits are not red. Hence, conclusion I does not follow. Again, Some black are fruits (I) + No fruit is
basket (E) = I + E = O = Some black are not basket. Hence, conclusion II follows.

2. 4

All Cameras are tablets (A) + Some tablets are batteries (I) = A + I = No, Conclusion, Hence, I does not follow. Again, No phone is Camera (E) + All Cameras are tablets
(A) = E + A = O* = Some tablets are not phones. Now, Some tablets are batteries (I) ---> conversion ---> Some batteries are tablets (I) + Some tablets are not phones (O) = I + O = No conclusion. Hence, II does not follow.

3. 3

All desks are tables (A) + No table is a pen (E) = A + E = E = No desk is a pen (E) + All pens are pencils (A) = E + A = O*= Some pencils are not desks. Hence, both
conclusions do not follow. But they make a complimentary pair (I - E). Hence, either conclusion I or II follows.

4. 1

All pets are wild ---> conversion ---> Some wild are pets. Now, Some wild are pets (I) + All pets are animals (A) = I + A = I = Some wild are animals. Hence, Conclusion I follows, conclusion II does not follow because of the second statement.

5. 5

Some poems are toys (I) + All toys are black (A) = I + A = I = Some poems are black. Hence, conclusion I follows. Conclusion II follows by converting the second statement.

6. 2


7. 5 None of the options proves that how many males in a family.

8. 2



Hence P is married to S.

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