Aptitude and Reasoning Questions

Q:

There are six persons A, B, C, D, E and F. C is the sister of F. B is the brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. How many male members are there in the group ?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: D) 4

Explanation:

D is father of A and grandfather of F. So, A is father of F. 

Thus, D and A are the two fathers. C is the sister of F So, C is the daughter of A. 

Since there is only one mother, it is evident that E is the wife of A and hence the mother of C and F. 

So, B is brother of A There are three brothers. So, F is the brother of C. 

A, the father. is male B, the brother, is male, C, the sister, is female D, the grand-father, is male, E, the mother, is female F, the brother, is male. 

So, there are four males. 

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Filed Under: Blood Relations

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Q:

Consider a regular hexagon ABCDEF. Two towers are situated at B and C. The angle of elevation from A to the top of the tower at B is 30 deg, and the angle of elevation to the top of the tower at C is 45 deg. What is the ratio of the height of towers at B and C?

A) 1:√3 B) 1:3
C) 1:2 D) 1:2√3
 
Answer & Explanation Answer: B) 1:3

Explanation:

Let the side of regular hexagon be ‘a’

Let height of the tower 1 be h1 and tower 2 be h2

Height of tower 1 = h1 = (distance between A and B)* (tan 30o)= a.1/√3

Distance between A and C = 2*√3.a/2= √3a

Height of tower 2 = h2 = (distance between A and C)* (tan 45o) = √3a.1 = √3a

Ratio of height of towers at B and C respectively =a/√3/√3a = 1/3.

 

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Filed Under: Simplification
Exam Prep: Bank Exams

3 4403
Q:

Find the value of 1.21x0.91.1x0.11?

A) 0 B) 1
C) 3 D) 5
 
Answer & Explanation Answer: C) 3

Explanation:

Given   1.21x0.91.1x0.11

 

1.21x100x0.9x101.1x10x0.11x100

 

9

 

= 3.

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Filed Under: Square Roots and Cube Roots
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

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Q:

A card is drawn from a pack of 52 cards. The probability of getting a queen of the club or a king of the heart is?

A) 1/26 B) 1/13
C) 2/13 D) 1/52
 
Answer & Explanation Answer: A) 1/26

Explanation:

Here in this pack of cards, n(S) = 52

Let E = event of getting a queen of the club or a king of the heart

Then, n(E) = 2

P(E) = n(E)/n(S) = 2/52 = 1/26

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Filed Under: Probability
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

11 4402
Q:

Change Active Voice to Passive Voice?

Active voice : Has he completed the work?

Answer

Passive Voice : Has the work been completed by him?


 


Rules in changing from Active voice to Passive voice :


1. Identify the subject, the verb and the object: S+V+O


2. Change the object into subject


3. Put the suitable helping verb or auxiliary verb


4. Change the verb into past participle of the verb


5. Add the preposition "by"


6. Change the subject into object.

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Q:

In the following question, various terms of an alphabet series are given with one or more terms missing as shown by (?). Choose the missing terms out of the given alternatives. BAZ, DCY, FEX, ?

A) FXW B) FEY
C) HGW D) EFX
 
Answer & Explanation Answer: C) HGW

Explanation:

The first letter moves two steps forward.
The second letter moves 2 steps forward.
The third letter moves one step backward.

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Filed Under: Number Series

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Q:

Which of the following fraction is the largest?

A) 7/12 B) 9/16
C) 13/20 D) 32/80
 
Answer & Explanation Answer: A) 7/12

Explanation:

Here to say which fraction is greater from the given options, the fraction with greater numerator with same denominator or smaller denominator with same numerator.

To find the greater fraction, among the given options, make the denominators same for the options by finding the LCM of all the denominators.

7/12, 9/16, 13/20, 32/80

Now, LCM of 12, 16, 20, 80 = 240.

Then,

140/240, 135/240, 156/240, 96/240

Here 

156240 > 140240 > 135240 > 96240=> 1320 > 712 > 916 > 3280

 

Hence, largest fraction = 13/20.

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Filed Under: Decimal Fractions
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

4 4399
Q:

Three of the following four are alike in a certain way and hence form a group. Which is the one that does not belong to that group?

A) 8314 B) 3249
C) 2518 D) 1315
 
Answer & Explanation Answer: A) 8314

Explanation:

In all numbers except 8314, the sum of first three digits is equal to the unit's digit. 

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Filed Under: Classification

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