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Q:

What is the next number of the following sequence ?

21, 77, 165, 285, ......

A) 404 B) 415
C) 426 D) 437
 
Answer & Explanation Answer: D) 437

Explanation:

The series follow the rule,

 


21 = 
77 = 92-4
165 = 132-4
285 = 172-4


5,9,13,17,21,(+4)...
In the same way next no. will be
212-4 = 441 - 4 = 437

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Filed Under: Number Series
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50 107956
Q:

Antonym of the given word

abet 

A) Risk B) Pacify
C) Aid D) Prevent
 
Answer & Explanation Answer: D) Prevent

Explanation:
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Filed Under: Analogy
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8 107870
Q:

Find the odd number out of the following number series?

2 4 8 11.5 18.25 28.375

A) 18.25 B) 28.375
C) 11.5 D) 8
 
Answer & Explanation Answer: D) 8

Explanation:

Given number series follows a pattern that,

2

2 x 1.5 + 1 = 4

4 x 1.5 + 1 = 7 (not equal to 8)

7 x 1.5 + 1 = 11.5

11.5 x 1.5 + 1 = 18.25

18.25 x 1.5 + 1 = 28.375

 

Hence, the odd number in the given number series is 8.

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Filed Under: Odd Man Out
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17 107846
Q:

Which are two chemicals used to purify water?

A) Chlorine & Fluorine B) Fluorine & Iodine
C) Chlorine & Hydrogen peroxide D) Fluorine & Iodine
 
Answer & Explanation Answer: C) Chlorine & Hydrogen peroxide

Explanation:

Removing the contaminents if any in the water which causes harm to our health is involved in the purifying of water. 

 

This process involves chemicals. Chloramines, Hydrogen peroxide, Iodine are the chemicals which are used in purifying water.

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Filed Under: Chemistry
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1 107734
Q:

What will come in place of the question mark (?) in the following number series?

5, 7, ?, 25, 45, 75

A) 11 B) 13
C) 15 D) 19
 
Answer & Explanation Answer: B) 13

Explanation:

The series given follow the pattern

 

+2, +2+4, +2+4+6, +2+4+6+8, +2+4+6+8+10,...

 

Here ? = 7 + 2 + 4 = 13.

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Filed Under: Odd Man Out
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10 106406
Q:

Rearrange the parts of the sentence in correct order.


Amartya Sen lays claim

P-to a history of writing
Q-some of the finest research papers
R-that have been published

A) QRP B) PQR
C) RQP D) QPR
 
Answer & Explanation Answer: B) PQR

Explanation:
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Filed Under: English
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0 106253
Q:

What comes next in this sequence

196, 169, 144, 121, 100, 81, ?

A) 77 B) 74
C) 67 D) 64
 
Answer & Explanation Answer: D) 64

Explanation:

The given number series follows a pattern that

196, 169, 144, 121, 100, 81, ?

    -27  -25   -23   -21  -19  -17

 

=> 81 - 17 = 64

Therefore, the series is 196, 169, 144, 121, 100, 81, 64.

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Filed Under: Odd Man Out
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23 104636
Q:

What will come in place of the question mark(?) in the following question ?

56% of 870 + 82% of 180 = 32% of 90 + ?

A) 777 B) 666
C) 606 D) 789
 
Answer & Explanation Answer: C) 606

Explanation:

56% of 870 = 56x870/100 = 487.20

82% of 180 = 82x180/100 = 147.60

32% of 90 = 32x90/100

487.20 + 147.6 - 28.8  =  ?

? = 634.8  - 28.8

? = 606.

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Filed Under: Percentage
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8 104531