Aptitude and Reasoning Questions

Q:

A mixture contains 25% milk and rest water. What percent of this mixture must taken out and replaced with milk so that in mixture milk and water may become equal. 

A) 31.8% B) 31%
C) 33.33% D) 29.85%
 
Answer & Explanation Answer: C) 33.33%

Explanation:

Now, take percentage of milk and applying mixture rule

25          100

       50

50            25  = 2 : 1

 

Hence required answer =  1/3 or 33.33%

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Filed Under: Alligation or Mixture
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Q:

Perch : Fresh Water :: ? : Salt water

A) Cod B) Crocodile
C) Snake D) Frog
 
Answer & Explanation Answer: A) Cod

Explanation:

A Perch is a fresh water fish. Similarly, a cod is a salt water fish.

 

Hence, Perch : Fresh Water :: Cod : Salt water.

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Q:

The average of marks in 3 subjects is 224. The first subject marks is twice the second and the second subject marks is twice the third. Find the second subject marks ?

A) 384 B) 96
C) 192 D) 206
 
Answer & Explanation Answer: C) 192

Explanation:

Let the third subject marks be 'x'
=> Second subject marks = 2x
=> Third subject marks = 4x
Given avg = 224
x + 2x + 4x = 224 x 3
=> 7x = 224 x 3
=> x = 96
Hence, Second subject marks = 2x = 2 x 96 = 192.

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Filed Under: Average
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Q:

Archipelago : Islands :: Massif : ?

A) Caves B) Hillocks
C) Mountains D) Forests
 
Answer & Explanation Answer: C) Mountains

Explanation:

First is a group of the second.

Hence, Archipelago : Islands :: Massif : Mountains.

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Q:

A person can row 8 1/2 km an hour in still water and he finds that it takes him twice as long to row up as to row down the river. The speed of the stream ?

A) 1.78 kmph B) 2.35 kmph
C) 2.83 kmph D) 3.15 kmph
 
Answer & Explanation Answer: C) 2.83 kmph

Explanation:

Given speed of the person = 8 1/2 = 17/2 kmph
Let the speed of the stream = x kmph
speed of upstream = 17/2 - x
speed of downstream = 17/2 + x
But given that,
2(17/2 - x) = 17/2 + x
=> 3x = 17/2
=> x = 2.83 kmph.

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Filed Under: Boats and Streams
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Q:

Indolence is related to Work in the same way as Taciturn is related to

A) Observe B) Speak
C) Cheat D) Act
 
Answer & Explanation Answer: B) Speak

Explanation:

"The words in each pair are antonyms of each other". Here "opposite Relationship" exists. The Word Indolence and the word work are opposite to each other. Similarly the opposite of the word Taciturn is speak.

Indolence - Meaning of this word is 'Laziness'

Taciturn - Meaning of this word is ' Saying very little' , not communicating a lot.

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Filed Under: Analogy

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Q:

Identify the diagram that best represents the relationship among the given classes.

Science, Physics, Chemistry

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

Explanation:
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Filed Under: Logical Venn Diagram
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Q:

Tile : Mosaic :: Knot : ?

A) Embroidery B) Abacus
C) Macrame D) Easle
 
Answer & Explanation Answer: C) Macrame

Explanation:

Just as tiles in mosaic make a pattern, so also the knots in a piece of macrame make a pattern.

Hence, Tile : Mosaic :: Knot : Macrame.

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Filed Under: Analogy
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