Logical Reasoning Model Questions with Explanation for Bank Exams 2

 Logical Reasoning:

Directions (Q.1- 5): In each questions below are three statements followed by two conclusions numbered I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.

Give answer 1): if only conclusion I follows.

Give answer 2): if only conclusion II follows.

Give answer 3): if either I or II follows.

Give answer 4): if neither I nor II follows.

Give answer 5): if both I and II follows.

1. Statements:

All roses are marigolds.

All marigolds are sunflowers.

Some sunflowers are jasmine.

Conclusions:

I. All roses are sunflowers.

II. Some jasmines are roses.

2. Statements:

Some papers are files.

All files are books.

Some books are printers.

Conclusions:

I. Some files are printers.

II. Some books are papers.

3. Statements:

Some leaves are branches.

Some branches are trees.

Some trees are flowers.

Conclusions:

I. Some leaves are trees.

II. Some branches are flowers.

4. Statements:

Some blades are knives.

Some knives are tables.

All books are tables.

Conclusions:

I. Some books are knives.

II. Some books are blades.

5. Statements:

All windows are houses.

All roads are houses.

Some houses are hills.

Conclusions:

I. Some hills are windows.

II. No hill is window.

Directions (Q.6 − 12): Study the following arrangement carefully and answer the questions given below :

R 4 E J 5 T 1 A M Q 3 8 N  I K 7 W F 6 D 9 U 2 Y V

6. Four of the following five are alike in a certain way based on their positions in the above

arrangement and so form a group. Which is the one that does not belong to that group?

1) J54 2) 38M 3) 7WI

4) 2Y9 5) 8IQ

7. How many such vowels are there in the above arrangement, each of which is immediately preceded

by a number and immediately followed by a consonant?

1) None  2) One  3) Two   4) Three  5) More than three

8. How many such numbers are there in the above arrangement, each of which is immediately preceded by a consonant but not immediately followed by a consonant?

1) One  2) Two   3) Three  4) Four  5) More than four

9. Which of the following is exactly in the middle between A  and D in the above arrangement?

1) I  2) N  3 ) K  4) 8   5) None of these

10. If all the numbers in the above arrangement are dropped, which of the following will be the ninth to the left of D?

1) T  2) A  3) V  4) J  5) None of these

11. Which of the following is the sixth to the left of the eleventh from the left end of the above arrangement?

1) M  2) 9  3) W   4) 5  5) None of these

12. Which of the following is the fourth to the right of the tenth from the right end of the above arrangement?

1) 8  2) D  3) 1  4) T 5) None of these

Directions (Q.13 - 17 ): Study the following information carefully and answer the questions given below:

P, Q, R, S, T and V are six students studying in a class. Each of them has a different height and weight. The tallest is not the heaviest. T is taller than only P but lighter than R. Q is taller than S and P and heavier than only T and V. P is lighter than only S. T is heavier than V. S is taller than V and Q is not the tallest.

13. How many of them are heavier than T?

1) One 2) Two 3) Three

4) Five 5) None of these

14. How many of them are shorter than Q?

1) Two 2) Four 3) Three

4) Five 5) None of these

15. Who among them is the tallest?

1) V 2) P 3) T

4) R  5) None of these

16. Who among them is third from top if arranged in descending order of height?

1) Q 2) V 3) S 4) Data inadequate 5) None of these

17. Who among them is the lightest?

1) V 2) T 3) P

4) R 5) None of these

18. In a certain code SEAL is written as $75@ and DOSE is written as #8$7. How is SOLD written in that code?

1) $8@# 2) #87$ 3) #8$7

4) $5@# 5) None of these

19. Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to the group?

1) Red 2) Pink 3) Green

4) Violet 5) Yellow

20. If '+' means '×', '−' means '÷', '÷' means '+' and '×' means '−' then what is the value of

540 − 36 + 12 ÷ 75 × 55 ?

1) 255 2) 512 3) 180

4) 235 5) None of these

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Explanation:

1.1; First and second premises are Universal Affirmative (A-type).

Third premise is Particular Affirmative  (I- type).

All roses are marigolds.

All marigolds are sunflowers.

A + A⇒A − type conclusion.

"All roses are sunflowers"

2.2; First and third premises are Particular Affirmative (I − type).

Second premise is Universal Affirmative  (A- type).

Some papers are files.

All files are books.

I + A⇒ I − type conclusion

'Some papers are books'.

Conclusion II is converse of the derived

conclusion.

3.4; All the three premises are Particular Affirmative (I − type).

No conclusion follows from Particular Premises.

4.4; First and second premises are Particular Affirmative (I − type).

Third premise is Universal Affirmative  (A − type).

Second and third premise are not aligned.

5.3; First and second premises are Universal Affirmative (A − type).

Third premise is Particular Affirmative  (I − type).

All windows are houses.

Some houses are hills.

A + I ⇒ No conclusion.

Conclusions I and II form Complementary

Pair. Therefore, either Conclusion I or

Conclusion II follows.

+1 −3

6.5; J(+1) ⎯→ 5(-3) ⎯→ 4

3(+1) ⎯→ 8(-3) ⎯→ M

7 (+1)⎯→ W(-3) ⎯→ I

2(+1) ⎯→ Y(-3)⎯→ 9

8 (+2)⎯→ I(-4) ⎯→ Q

7.3; Number − Vowel − ConsonantSuch combinations are : 4EJ, 1AM

8.3; Such combinations are : T1A, Q38, D9U

9.1;

10.1;

11.4; 6^th to the left of 11^th  from the left means 5^th  from left. 5th from left ⇒ 5.

12.2; 4^th to right of 10 from right means 6^th from right. 6^th from right means D.

(13 - 17): According to height R > Q > S > V > T > P

According to weight S > P > R > Q > T > V

13.5; S, P, R and Q are heavier than T.

14.2; S, V, T and P are shorter than Q.

15.4; R is the tallest.

16.3; S is the third from the top.

17.1; V is the lightest.

18.1;

S E A L and D O S E

↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓

$ 7 5 @ # 8 $ 7

Therefore,

S O L D

↓ ↓ ↓ ↓

$ 8 @ #

19.2; Except Pink, all others are different colorsof a rainbow.

20.5; ? = 540 ÷ 36 × 12 + 75 − 55

or, ? = 15 × 12 + 75 − 55

or, ? = 180 + 75 − 55 = 200