Aptitude and Reasoning Questions

Q:

It takes five minutes to pass a rumour from one person to two other persons. The tree of rumour continues. Find how many minutes does it take spread the rumour to 729 persons ?

A) 45 min B) 25 min
C) 30 min D) 36 min
 
Answer & Explanation Answer: C) 30 min

Explanation:

After 5 mins ..... 3 persons will get rumour
After 10 mins .... 3x2 + 3 = 9 = 32 persons will get
after 15 =5x3 min ......9x2 + 9 =27 = 33 persons will get news.
.
.
after 5x6 mins ... 36 = 729 persons will get news.

 

Therefore, time taken to spread the rumour to 729 persons is 30 minutes.

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Filed Under: Arithmetical Reasoning
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
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23 21848
Q:

Find the number of bricks, each measuring 24 cm x 12 cm x 8 cm, required to construct a wall 24 m long, 8m high and 60 cm thick, if 10% of the wall is filled with mortar?

A) 35000 B) 45000
C) 55000 D) 65000
 
Answer & Explanation Answer: B) 45000

Explanation:

Volume of the wall = (2400 x 800 x 60)  cu.cm  

 

Volume of bricks   = 90% of the volume of the wall 

= [(90/100) x 2400 x 800 x 60] cu.cm  

 

Volume of 1 brick = (24 x 12 x 8)  cu.cm 

 

Number of bricks = [(90/100) x (2400 x 800 x 60) ]/ (24 x 12 x 8) = 45000

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18 21831
Q:

An Assertion (A) and a Reason (R) are given below.

 

Assertion (A) : In India judiciary is independent of the executive.

Reason (R) : Judiciary favors the government and helps in the implementation of its plans.

 

Choose the correct option.

 

A) A is true but R is false B) A is false but R is true
C) Both A and R are true and R is the correct explanation of A D) Both A and R are false
 
Answer & Explanation Answer: A) A is true but R is false

Explanation:
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Filed Under: Statement and Conclusions
Exam Prep: Bank Exams

0 21829
Q:

From the given words, select the word which cannot be formed using the letters of the given word.

SMOTHERS

A) THOSE B) METRO
C) STORE D) TEARS
 
Answer & Explanation Answer: D) TEARS

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

1 21826
Q:

An agent, gets a commission of 2.5% on the sales of cloth. If on a certain day, he gets Rs. 12.50 as commission, the cloth sold through him on that day is worth

A) 300 B) 500
C) 700 D) 900
 
Answer & Explanation Answer: B) 500

Explanation:

Let the total sale be Rs. x.

 

Then, 2.5%. of x = 12.50

=> (25/100 * 1/100 * x) =  125/10

=> x = 500.

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Filed Under: Percentage

31 21818
Q:

Which of the following numbers is composite?

 

A) 47 B) 57
C) 37 D) 67
 
Answer & Explanation Answer: A) 47

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

0 21807
Q:

Square is to Triangle and Cube is to

A) Pyramid B) Rectangle
C) Ice D) Rhombus
 
Answer & Explanation Answer: A) Pyramid

Explanation:

Square is 2-dimensional 4 sided figure Whereas Cube is 3-dimensional figure which looks like Square.

 

Similarly, Triangle is 2-dimensional 3 sided figure Whereas Pyramid is 3-dimensional figure which looks like Triangle.

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Filed Under: Analogy
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14 21799
Q:

Select the number missing from the given sequence.

 

1, 2, 6, ___, 120, 720

 

A) 24 B) 9
C) 50 D) 12
 
Answer & Explanation Answer: A) 24

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

4 21797