Aptitude and Reasoning Questions

Q:

If the length of a certain rectangle is decreased by 4 cm and the width is increased by 3 cm, a square with the same area as the original rectangle would result. Find the perimeter of the original rectangle.

A) 20 B) 30
C) 40 D) 50
 
Answer & Explanation Answer: D) 50

Explanation:

Let x and y be the length and breadth of the rectangle respectively.
Then, x - 4 = y + 3 or x - y = 7 ----(i)
Area of the rectangle =xy; Area of the square = (x - 4) (y + 3)
(x - 4) (y + 3) =xy <=> 3x - 4y = 12 ----(ii)
Solving (i) and (ii), we get x = 16 and y = 9.
Perimeter of the rectangle = 2 (x + y) = [2 (16 + 9)] cm = 50 cm.

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

21 27683
Q:

In the following question, select the odd letter/letters from the given alternatives.

 

A) BDF B) LNP
C) TVX D)  JLP
 
Answer & Explanation Answer: D)  JLP

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams , GRE , TOEFL

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Q:

What should come next in the following number series?

9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1

A) 9 B) 8
C) 7 D) 6
 
Answer & Explanation Answer: D) 6

Explanation:

Here the series is:

 

987654321, 87654321, 7654321, 65...

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28 27680
Q:

In the following question, select the odd letter/letters from the given alternatives.

 

A) BFJ   B) PTX  
C) JNR   D) KOR
 
Answer & Explanation Answer: D) KOR

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

Decide which of the conclusions logically follows from the information given in the statement.

 

Statements :

During the rainy season many train accidents occur in hilly regions due to landslides.

 

Conclusions :

1. Trains should not run during the rainy season.

2. More precautions should be taken by the government to avoid landslides.

 

 

A) Both 1 and 2 follow B) Only conclusion 2 follows
C) Neither 1 nor 2 follows D) Only conclusion 1 follows
 
Answer & Explanation Answer: B) Only conclusion 2 follows

Explanation:
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0 27637
Q:

The average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20kg. If the average weight of the whole class is 23.25 kg, what could be the possible strength of boys and girls respectively in the same class?

A) 14 and 16 B) 13 and 27
C) 17 and 27 D) None of these
 
Answer & Explanation Answer: B) 13 and 27

Explanation:

Total no.of boys : no. of girls = 13:27

       27             :                13

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Filed Under: Alligation or Mixture

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Q:

From a pack of 52 cards, 3 cards are drawn. What is the probability that one is ace, one is queen and one is jack?

A) 19/5525 B) 16/5525
C) 17/5525 D) 7/5525
 
Answer & Explanation Answer: B) 16/5525

Explanation:

Required probability:

 4C1*4C1*4C152C3=4*4*422100=165525

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Filed Under: Probability

27 27630
Q:

A man traveled from the village to the post-office at the rate of 25 kmph and walked back at the rate of 4 kmph. If the whole journey took 5 hours 48 minutes, find the distance of the post-office from the village ?

A) 40 km B) 30 km
C) 20 km D) 10 km
 
Answer & Explanation Answer: C) 20 km

Explanation:

Average speed = 2aba+b, here a=25 b=4
= 2 x 25 x 4/(25+4) = 200/29 km/hr.

Distance covered in 5 hours 48 minutes
= Speed x time = (200/29)x (29/5) Distance covered in 5 hours 48 minutes = 40kms.

Distance of the post office from the village = (40/2) = 20 km.

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Filed Under: Time and Distance
Exam Prep: CAT , Bank Exams , AIEEE
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