Aptitude and Reasoning Questions

Q:

Alloy A contains 40% gold and 60% silver. Alloy B contains 35% gold and 40% silver and 25% copper. Alloys A and B  are mixed in the ratio of 1:4 .What is the ratio of gold and silver in the newly formed alloy is?

A) 20% and 30% B) 36% and 44%
C) 25% and 35% D) 49% and 36%
 
Answer & Explanation Answer: B) 36% and 44%

Explanation:

Assume the weight of alloy a is 100 kg 

Therefore, The weight of alloy B is 400kg

 

             Gold          silver         copper

 

    A       40kg          60kg          0kg

 

    B      140kg         160kg        100kg

 

  total    180kg          220kg        100kg

 

Therefore, Ratio of gold and silver in new alloy = 180500:200500= 36% :44%

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100 30435
Q:

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

 

46 : 48 : : 61 : ?

 

A) 67 B) 71
C) 65 D) 63
 
Answer & Explanation Answer: D) 63

Explanation:
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1 30432
Q:

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

 

56 : 51 : : 76 : ?

 

A) 71 B) 69
C) 73 D) 75
 
Answer & Explanation Answer: A) 71

Explanation:
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0 30423
Q:

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

 

16 : 23 : : 22 : ?

 

A) 34 B) 29
C) 23 D) 31
 
Answer & Explanation Answer: B) 29

Explanation:
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0 30411
Q:

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

 

MLF : OOJ : : ?  :  ?

 

A) RIG : TLK B) AGS : BIV
C) KTM : LUN D) FRY : DQX
 
Answer & Explanation Answer: A) RIG : TLK

Explanation:
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0 30410
Q:

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

 

SQM : RPL : : ? : ?

 

A) KCN : JBO   B) DQA : CPB  
C) BSU : ART   D) PYC : OXD
 
Answer & Explanation Answer: C) BSU : ART  

Explanation:
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3 30403
Q:

From 5 consonants and 4 vowels, how many words can be formed using 3 consonants and 2 vowels ?

A) 7600 B) 7200
C) 6400 D) 3600
 
Answer & Explanation Answer: B) 7200

Explanation:

From 5 consonants, 3 consonants can be selected in 5C3 ways.

 

From 4 vowels, 2 vowels can be selected in 4C2 ways.

 

Now with every selection, number of ways of arranging 5 letters is 5P5ways.

 

Total number of words = 5C3*4C2*5P5

 

                                = 10x 6 x 5 x 4 x 3 x 2 x 1= 7200

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16 30403
Q:

In the following question, select the related word pair from the given alternatives.

 

Rose : Flower : : ? : ?

 

A) Six : Square B) Tiger : Den
C) Lily : White D) White : Colour
 
Answer & Explanation Answer: D) White : Colour

Explanation:
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1 30385