Aptitude and Reasoning Questions

Q:

Taxonomy : Classification :: Pedology : ?

A) Mountain B) Nature
C) Soil D) Farming
 
Answer & Explanation Answer: C) Soil

Explanation:

Taxonomy is the science dealing with classification.

Similarly, pedology deals with the study of soils.

 

Hence, Taxonomy : Classification :: Pedology :Soils.

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Filed Under: Analogy
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Q:

Assertion(A) : The steam engine was invented by James Watt.
Reason(R) : There was a problem of taking out water from flooded mines.

A) R correctly explains A B) R is true but A is fale
C) A is true but R is false D) Both A and R are false
 
Answer & Explanation Answer: A) R correctly explains A

Explanation:

The problem of pumping out water from the flooded mines provided the need of self-working engine, which led James Watt to invent the same.
Thus, both A and R are true & R correctly explains A.

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Filed Under: Assertion and Reason
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Q:

A class is 6 meters 24 centimeters in length and 4 meters 32 centimeters in width. Find the least number of square tiles of equal size required to cover the entire floor of the class room ?

A) 115 B) 117
C) 116 D) 114
 
Answer & Explanation Answer: B) 117

Explanation:

Length = 6 m 24 cm = 624 cm
Width = 4 m 32 cm = 432 cm
HCF of 624 and 432 = 48
Number of square tiles required = (624 x 432)/(48 x 48) = 13 x 9 = 117.

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Filed Under: Area
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6 7169
Q:

Swetha when get married to Sudeer her age was 3/4 th of her husband's age. After 12 years her age became 5/6 th of her husband's age. Then what's the age of Swetha when she got married ?

A) 18 years B) 21 years
C) 23 years D) 17 years
 
Answer & Explanation Answer: A) 18 years

Explanation:

At the time of marriage, let Sudeer's age be 4x, then Swetha's age is 3x
12 years after:
Age of Sudeer = 4x+12
Age of Swetha = 3x+12
Now the equation is 3x+12=5/6(4x+12)
Solving equation we get x=6
Hence Swetha got married at the age of 18.

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Filed Under: Problems on Ages
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Q:

Indicating to a photo, Mukesh said that this Man’s son is my father’s son. Who was there in the photo ?

A) Mukesh Uncle B) Mukesh Brother
C) Mukesh Grandfather D) Mukesh Father
 
Answer & Explanation Answer: D) Mukesh Father

Explanation:

That man's son means Mukesh

=> Mukesh father's son is Mukesh

=> It is Mukesh's father.

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Filed Under: Blood Relations
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43 7166
Q:

While travelling in a train, you observe some college students pulling the alarm chain simply to get down at their desired point. You would :

A) with the help of some passengers, check them from doing so B) let them pull the chain but check them from detraining.
C) inform the guard of the train as soon as it stops. D) keep quiet and do nothing.
 
Answer & Explanation Answer: A) with the help of some passengers, check them from doing so

Explanation:

 

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Q:

Should the teenagers be denied access to the Internet?

Arguments : 

I. Yes. Most of the children, particularly the teenegers, are found indulging in accessing pornographic contents.

II. No. Denying access to the internet would mean denying access to a lot of useful information ; instead the access may be controlled

A) If only argument I is strong B) If only argument II is strong
C) If neither I nor II is strong D) If both I and II are strong
 
Answer & Explanation Answer: D) If both I and II are strong

Explanation:

I is strong because an obsession with such contents creates  a bad impact on their impressionable minds. II is strong because in today's age one can't afford to lose access to information

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Q:

Subbu purchased a tape recorder at 9/10 of its selling price and sold it at 8% more than its selling price. His gain is

Answer

Let S.P = x then C.P = \inline \frac{9x}{10}


Selling price received by subbu = (108% of x)


                                            = \inline \frac{108}{100}x=\frac{27}{25}x


Gain= \inline (\frac{27}{25}x-\frac{9}{10}x)=\frac{9}{50}x


Hence gain% = \inline (\frac{9x}{50}\times \frac{10}{9x}\times 100) = 20%

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Subject: Percentage

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