Verbal Reasoning - Mental Ability Questions

Q:

If x = √8 - √7, y = √6 - √5 and z = √10 - 3, which of the following is true  ?

A) x > y < z B) x < y < z
C) x > y > z D) z < x < y
 
Answer & Explanation Answer: D) z < x < y

Explanation:

x = √8 - √7 = 1/(√8 + √7) and y = √6 - √5 = 1/(√6 + √5) and z = √10 - 3 = 1/(√10 + 3)

As (√8 + √7) > (√6 + √5), (√8 - √7) < (√6 - √5)

As (√10 + 3) > (√8 + √7) > (√6 + √5)

z < x < y.

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

6 5493
Q:

Choose the alternative that will continue the same pattern and replace 'x' 33,40,37,44,x

A) 41 B) 31
C) 42 D) 39
 
Answer & Explanation Answer: A) 41

Explanation:
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Filed Under: Number Series

4 5477
Q:

-20 , -16 , -12 , -8 .... 

In the sequence above, each term after the first is 4 greater than the preceding term. Which of the following could not be a term in the sequence? 

A) 220 B) 440
C) 668 D) 762
 
Answer & Explanation Answer: D) 762

Explanation:

All terms in the sequence will be multiples of 4.

762 and 902 are not multiples of 4

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Filed Under: Sequential Output Tracing
Exam Prep: GRE

14 5467
Q:

L is the daughter of K's brother's wife's father-in-law's daughter. K is L's __

A) Son B) Aunt
C) Uncle D) Can't be determined
 
Answer & Explanation Answer: D) Can't be determined

Explanation:

K's brother's wife's father-in-law is K's brother's father i.e. K's father. K's father's daughter is K's Sister.
L is daughter of K's sister => K is L's Uncle or Aunt.

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Filed Under: Blood Relations
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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5 5459
Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 6,18,42,78,x

A) 84 B) 126
C) 96 D) 108
 
Answer & Explanation Answer: B) 126

Explanation:

The pattern is +12,+24,+36,+48, . . . .
So,missing term=78+48=126

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Filed Under: Number Series

2 5436
Q:

There is a certain relation between two given words on one side of : : and one word is given on another side of : : while another word is to be found from the given alternatives, having the same relation with this word as the given pair has. Select the best alternative Aeroplane:Cockpit::Train:?

A) Wagon B) Coach
C) Compartment D) Engine
 
Answer & Explanation Answer: D) Engine

Explanation:

As the pilot of an aeroplane sits in the cockpit,
the driver of a train works in the engine.

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0 5422
Q:

Virus doubles every 3 mins. It is 'K' in 1 hour, when was it K/4 ?

A) 29 min B) 25 min
C) 54 min D) 57 min
 
Answer & Explanation Answer: C) 54 min

Explanation:

If virus is K in 1hr i.e 60 min
then in 57 min it was K/2 as it doubles every 3 minutes
=> In 54 min it was K/4.
At 54 minutes it was K/4.

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Filed Under: Arithmetical Reasoning
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6 5410
Q:

In the following question, a matrix of certain characters is given.These characters follow a certain trend, row-wise or column wise.Find out this trend and choose the missing character accordingly

11 6 8
17 12 ?
25 34 19
19 28 11

A) 16 B) 15
C) 13 D) 9
 
Answer & Explanation Answer: A) 16

Explanation:

 

In the first column, 17 - 11 = 25 - 19 = 6.
In the second column, 12 - 6 = 34 - 28 = 6.
Let the missing number in the third column be y.
Then, y - 8 = 19 - 11 = 8 or y = 16.

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167 5406