Logical Reasoning Test

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Logical Reasoning Test - 10

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Question 1
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Directions For Questions

Direction: Read the following information carefully and answer the given question:

Eight persons P, Q, R, S, T, U, V and W sit in a row but not necessarily in same order. Some are facing north while some are facing south. Each of them has different number of balloons among 7, 9, 10, 15, 18, 25, 26 and 36. Not more than two adjacent persons face in same direction.

V has balloons in the multiple of 5 but more than U. U does not have 9 balloons. Q sits immediate left of V and both face north direction. R sits third to the right of P, who has even number of balloons. Sum of number of number of balloons of Q and T is equal to number of balloons of R. Person, who has 9 balloons, sits second to the right of T. Only R is an immediate neighbor of S. One person sits between V and T. Q has lesser balloons than that of W. U and W are immediate right of each other.

...view full instructions

What is the difference in number of balloons of W and U?

A
5

B
3

C
4

D
1

E
2

Solution

6. One person sits between V and T. So, case 1 and case 2() are not possible.

7. U and W are immediate right of each other. So, case 2(c) won’t be possible as U and W cannot be placed in that case.

8. Person, who has 9 balloons, sits second to the right of T. (V cannot have 9 balloons as V has balloons in the multiple of 5) So, T must be facing north.

9. U does not have 9 balloons. (So, W sits at extreme end. W has 9 balloons

10. Q has lesser balloons than that of W. only combination Q, T and R must have 7, 18 and 25 balloons respectively satisfy the condition.

11. V has balloons in the multiple of 5 but more than U. So, U and V must have 10 and 15 balloons respectively.

Difference in number of balloons of W and U = 10 – 9 = 1

So, the difference in number of balloons of W and U is “1”.
Question 2
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Directions For Questions

Direction: Read the following information carefully and answer the given question:

Eight persons P, Q, R, S, T, U, V and W sit in a row but not necessarily in same order. Some are facing north while some are facing south. Each of them has different number of balloons among 7, 9, 10, 15, 18, 25, 26 and 36. Not more than two adjacent persons face in same direction.

V has balloons in the multiple of 5 but more than U. U does not have 9 balloons. Q sits immediate left of V and both face north direction. R sits third to the right of P, who has even number of balloons. Sum of number of number of balloons of Q and T is equal to number of balloons of R. Person, who has 9 balloons, sits second to the right of T. Only R is an immediate neighbor of S. One person sits between V and T. Q has lesser balloons than that of W. U and W are immediate right of each other.

...view full instructions

Who among the following has 25 balloons?

A
Q

B
U

C
R

D
W

E
S

Solution

6. One person sits between V and T. So, case 1 and case 2() are not possible.

7. U and W are immediate right of each other. So, case 2(c) won’t be possible as U and W cannot be placed in that case.

8. Person, who has 9 balloons, sits second to the right of T. (V cannot have 9 balloons as V has balloons in the multiple of 5) So, T must be facing north.

9. U does not have 9 balloons. (So, W sits at extreme end. W has 9 balloons

10. Q has lesser balloons than that of W. only combination Q, T and R must have 7, 18 and 25 balloons respectively satisfy the condition.

11. V has balloons in the multiple of 5 but more than U. So, U and V must have 10 and 15 balloons respectively.

So, R has 25 balloons.
Question 3
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Directions For Questions

Direction: The following questions are based on the three-digit numbers given below. Study the information carefully and answer the questions.

974 753 376 587 845

...view full instructions

If 2 is added to the last digit of each number and then the positions of the first and the second digits are interchanged, which of the following will be the highest number?

A
376

B
753

C
587

D
845

E
974

Solution

Given number series: 974 753 376 587 845

Adding 2 to the last digit, we get:

976 755 378 589 847

Interchanging the first and the second digit, we get:

796 575 738 859 487

So, 859 is the highest number obtained from 587.
Question 4
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Directions For Questions

Direction: The following questions are based on the three-digit numbers given below. Study the information carefully and answer the questions.

974 753 376 587 845

...view full instructions

If in the above set of numbers 1 is added to the last digit and 2 is subtracted from first digit, then which number will be second from left if arranged in descending order?

A
376

B
753

C
587

D
845

E
974

Solution

Given number series:974 753 376 587 845

1 is added to the last digit and 2 is subtracted from the first digit, we get:

775 554 177 388 646

On rearranging the series in descending order, we get

775 646 554 388 177

So, the second number is 646 obtained from 845.
Question 5
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Directions For Questions

Direction: Read the passage carefully and answer the following question.

A, B and D meet their relatives C, E, F and G while visiting the trade fair. A is the brother of B and D is the father of A. F is the only son of C and E. E, who is the brother-in-law of G and the father-in-law of B.

...view full instructions

How many female members are there?

A
2

B
3

C
4

D
Cannot be determined

E
None of these

Solution

It is clear that A, D, E and F are males.

As, F is the son of C and E and E is male, C has to be female.

Now, G can be either males or females and the information provided is not sufficient to decide which one of them is of what gender.

The number of females cannot be determined.
Question 6
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Directions For Questions

Direction: Read the passage carefully and answer the following question.

A, B and D meet their relatives C, E, F and G while visiting the trade fair. A is the brother of B and D is the father of A. F is the only son of C and E. E, who is the brother-in-law of G and the father-in-law of B.

...view full instructions

How is G related to A?

A
Uncle

B
Father-in-law

C
Mother-in-law

D
Mother

E
None of these

Solution

A and B are siblings, while E is the father-in-law of B and brother-in-law of G.

Definitely, G is not the father-in-law or mother-in-law of A according to the information provided. Also, G and B are not directly related and the gender of G is also not known.
Question 7
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Direction: In the following question, a given questions is followed by information in three statements. You have to find out the data in which statement (s) is sufficient to answer the question and mark your answer accordingly.

Saritha drinks one drink daily amongst Coffee, Tea and Milk on the seven days of the week. When does Saritha drink milk?

I. Saritha drinks tea on 4 alternative days.

II. She drinks coffee on Tuesday and Thursday.

III. Saritha drinks tea on Monday.

A
Statement I alone is sufficient

B
Statements II and III together are sufficient

C
Statements I and II together are sufficient

D
Statement I and III together are sufficient

E
Statement III alone is sufficient

Solution

From Statement I: Saritha drinks tea on 4 alternative days.

Saritha can drink milk on Monday, Tuesday, Wednesday, Thursday, Friday Saturday or Sunday as the 4 days are not known.

So, Statement I alone is not sufficient to answer the question.

From Statement II: She drinks coffee on Tuesday and Thursday.

Saritha does not drink milk on Tuesday and Thursday as she drinks coffee.

Saritha can drink milk on Monday, Wednesday, Friday, Saturday or Sunday.

So, Statement II alone is not sufficient to answer the question.

From Statement III: Saritha drinks tea on Monday.

Saritha does not drink milk on Monday as she drinks tea.

Saritha can drink milk on Tuesday, Wednesday, Thursday, Friday Saturday or Sunday.

So, Statement III alone is not sufficient to answer the question.

By combining Statements I and II: Saritha drinks tea on 4 alternative days. She drinks coffee on Tuesday and Thursday.

Saritha does not drink milk on Tuesday and Thursday as she drinks coffee.

Saritha does not drink milk on Monday, Wednesday, Friday and Sunday as she drinks Tea.

Saritha drinks milk on Saturday.

So, Statement I and II together are sufficient to answer the question.
Question 8
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Direction: The following consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.

Certain words are coded in the following manner in a code language. Find the code for “thick tree”?

Statement I : “tree old stem” is coded as '26 84 15' and “stem stand thick” is coded as '10 26 45'.

Statement II : “thick old wine” is coded as '13 84 10' and “tree old stand” is coded as '15 45 84'.

A
If the data in statement I is sufficient to answer the question.

B
If the data in either statement I or statement II is sufficient to answer the question.

C
If the data in both statement I and statement II is sufficient to answer the question.

D
If the data in both statement I and statement II is necessary to answer the question.

E
If the data in neither statement I nor statement II is sufficient to answer the question.

Solution

From statement I:

Codes for 'thick and tree' cannot be found out.

Thus, data in statement I is not sufficient.

From statement II:

Codes for 'thick and tree' cannot be found out.

Thus, the data in statement II is not sufficient.

From statements I and II:

Code for 'thick' is 10 and code for' tree' is '15'.

Thus, data in statement I and II together is necessary to answer.
Question 9
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Directions For Questions

Directions: Study the following information carefully and answer the questions based on it:

In a family, there are eight members. A is mother of B, who is brother of C. C and Q are siblings. Y is daughter of P. Z is brother in law of B, who is son of D. A has only one son. There are only two married couples in the family. P is married to B.

...view full instructions

How is P related with Z?

A
Brother

B
Sister

C
Nephew

D
Niece

E
None of these

Solution

In a family there are eight members.

1) A is mother of B, who is brother of C. C and Q are siblings.

2) Y is daughter of P. Z is brother in law of B, who is son of D.

3) A has only one son. There are only two married couples in the family. P is married to B.

The family tree is as follows:

So, we can see that P is the sister of Z.
Question 10
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Directions For Questions

Directions: Study the following information carefully and answer the questions based on it:

In a family, there are eight members. A is mother of B, who is brother of C. C and Q are siblings. Y is daughter of P. Z is brother in law of B, who is son of D. A has only one son. There are only two married couples in the family. P is married to B.

...view full instructions

How is C related with Y?

A
Aunt

B
Daughter

C
Uncle

D
Granddaughter

E
None of these

Solution

In a family there are eight members.

1) A is mother of B, who is brother of C. C and Q are siblings.

2) Y is daughter of P. Z is brother in law of B, who is son of D.

3) A has only one son. There are only two married couples in the family. P is married to B.

The family tree is as follows:

So, we can see that C is the Aunt of Y.