Exams


Q:

The average of a set of whole numbers is 27.2. when the 20% of the elements are eliminated from the set of numbers then the average become 34. The number of elements in the new set of numbers can be :

A) 27 B) 35
C) 52 D) 63
 
Answer & Explanation Answer: C) 52

Explanation:

only (c) is correct since it is divisible by 4.

 

Let the original number of element  be x then the new no.of elements will be 

 

            4x5 = K                               

 

So K must be divisible by 4

 

Since,      x =  Kx5/4

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Filed Under: Percentage
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Q:

In the following question, select the related letter/letters from the given alternatives.

 

DFG : EGH : : PRS : ?

 

A) QRS B) RST
C) QST D) RTU
 
Answer & Explanation Answer: C) QST

Explanation:
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Filed Under: Analogy
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0 12723
Q:

In the following question, select the related letter/letters from the given alternatives.

 

KPV : LQW : : BOY : ?

 

A) APX B) CPZ
C) CPX D) DQZ
 
Answer & Explanation Answer: B) CPZ

Explanation:
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1 12722
Q:

In the following question, select the related number from the given alternatives.

 

5 : 125 : : 7 : ?

 

A) 343 B) 512
C) 243 D) 729
 
Answer & Explanation Answer: A) 343

Explanation:
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Filed Under: Analogy
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4 12720
Q:

Which of the following is a comparison operator in SQL?

A) = B) <>
C) ` D) /
 
Answer & Explanation Answer: A) =

Explanation:

The comparison operator that is used in SQL is '='. Comparison operators test whether two expressions are the same. Comparison operators can be used on all expressions except expressions of the text, ntext, or image data types.

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Filed Under: SQL
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3 12719
Q:

Find the next number in the series 3, 4, 5, 5, 12, 13, 7, 24, 25, 8, 15, ...

A) 26 B) 16
C) 17 D) 18
 
Answer & Explanation Answer: C) 17

Explanation:

The pattern is 32+42=52,  52+122=13272+242=252 

The next number = 82+152=172

 i.e. 17

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Filed Under: Numbers
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27 12718
Q:

Refer the below data table and answer the following question.

If 400 calories are burned by jogging 5 km, how many calories are burnt in the given week?

 

A) 960 calories B) 1010 calories
C) 910 calories D) 860 calories
 
Answer & Explanation Answer: A) 960 calories

Explanation:
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Filed Under: Table Charts
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0 12715
Q:

A bird lover was asked how many birds he had in the basket. He replied that there were all parrots but six, all pigeons but six, and all koel but six. How many birds he had in the basket in all ?

A) 8 B) 18
C) 9 D) 10
 
Answer & Explanation Answer: C) 9

Explanation:

There were all parrots but six means that six birds were not parrots but only pigeons and koels.

Similarly, number of parrots + number of koels = 6 and number of parrots + number of pigeons = 6.

This is possible when there are 3 parrots, 3 pigeons and 3 koels i.e. 9 birds in all.

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Filed Under: Arithmetical Reasoning
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17 12710