Aptitude and Reasoning Questions

Q:

Statements :
All keys are locks.
All locks are bangles.
All bangles are cars.


Conclusion :
a. Some cars are locks.
b. Some bangles are keys.
c. Some cars are keys.

A) Only a follows B) Only c follows
C) Only a & b follows D) a, b & c follows
 
Answer & Explanation Answer: D) a, b & c follows

Explanation:

All locks are bangles + All bangles are cars = A + A = A
= All locks are cars => Some cars are locks.
Hence conclusion (a) follows.
All keys are locks + All locks are bangles = A + A = A
= All keys are bangles => some bangles are keys.
Hence conclusion (b) follows.
All keys are bangles + All bangles are cars = A + A = A
= All keys are cars => Some cars are keys.
Hence conclusion (C) follows.

 

 

 

Thus all a, b and c follows.

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Filed Under: Statement and Conclusions
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4 42797
Q:

Find the factors of (x2  +  x -  42)

 

A) (x + 14)(x - 3) B) (x + 6)(x - 7)
C) (x - 6)(x + 7) D) (x - 14)(x + 3)
 
Answer & Explanation Answer: C) (x - 6)(x + 7)

Explanation:
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Filed Under: Simplification
Exam Prep: AIEEE , Bank Exams

0 42772
Q:

From the given alternatives, according to dictionary, which word will come at THIRD position?

1. Doubled

2. Dragged

3. Doubling

4. Dragging

5. Draw

 

A)   Dragged       B)     Dragging    
C)   Doubled   D)   Doubling  
 
Answer & Explanation Answer: A)   Dragged      

Explanation:
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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

5 42756
Q:

Find the wrong number in the given number series?

5, 8, 40, 90, 664

A) 8 B) 40
C) 90 D) 664
 
Answer & Explanation Answer: B) 40

Explanation:

The given number series is 5, 8, 40, 90, 664

5

5 - 1 x 2 = 8

8 - 3 x 4 = 20 (NOT 40)

20 - 5 x 6 = 90

90 - 7 x 8 = 664

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6 42742
Q:

The length of a rectangular hall is 5m more than its breadth. The area of the hall is 750 sq.m. The length of the hall is

A) 20 B) 25
C) 30 D) 35
 
Answer & Explanation Answer: C) 30

Explanation:

Let breadth = x m

 

Then, length = (x+5)m

 

Area of a rectangle = Length x Breadth

 

x(x+5) = 750 

 

x² + 5x - 750= 0

 

(x+30)(x-25)= 0

 

x = 25 or x = -30

 

Hence, breadth x = 25m

 

=> Length = x + 5 = 25 + 5 = 30m. 

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Filed Under: Area
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72 42705
Q:

A wire can be bent in the form of a circle of radius 56cm. If it is bent in the form of a square, then its area will be

A) 7744 B) 8844
C) 5544 D) 4444
 
Answer & Explanation Answer: A) 7744

Explanation:

length of wire = 2πr= 2 x (22/7 ) x 56 = 352 cm
side of the square = 352/4 = 88cm
area of the square = 88 x 88 = 7744sq cm

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Filed Under: Area
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77 42685
Q:

At what time between 5.30 and 6 will the hands of a clock be at right angles?

A) (43 + 5/11) min past 5 B) (43 + 7/11) min pats 5
C) 5 D) 7
 
Answer & Explanation Answer: B) (43 + 7/11) min pats 5

Explanation:

At 5 o'clock, the hands are 25 min. spaces apart.
To be at right angles and that too between 5.30 and 6, the minute hand has to gain (25 + 15) = 40 min. spaces.

 

55 min. spaces are gained in 60 min

 

40 min. spaces are gained in 6055×40 min  

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Filed Under: Clocks
Exam Prep: Bank Exams
Job Role: Bank PO

73 42667
Q:

Find the next number in the given number series?

2, 19, 0, 21, –2, ?

A) 23 B) 25
C) 27 D) 29
 
Answer & Explanation Answer: A) 23

Explanation:

The given number series 2, 19, 0, 21, –2, ? follows a pattern,

2

2 + 17 = 19

19 - 19 = 0

0 + 21 = 21

21 - 23 = -2

-2 + 25 = 23

 

Hence, the next number in the series is 23.

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2 42653