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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Solve the following :

 

72 ÷ 12{15 + 12 - 9 + 6 - 5 + 7¯} = ?

 

A) 6 B) 9
C) 12 D) 8
 
Answer & Explanation Answer: A) 6

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 44805
Q:

10 years ago, the average age of a family of 4 members was 24 years. Two children having been born (with age diference of 2 years), the present average age of the family is the same. The present age of the youngest child is :

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

Explanation:

Total age of 4 members, 10 years ago = (24 x 4) years = 96 years.

 

Total age of 4 members now = [96 + (10 x 4)] years = 136 years.

 

Total age of 6 members now = (24 x 6) years = 144 years.

 

Sum of the ages of 2 children = (144 - 136) years = 8 years.

 

Let the age of the younger child be x years.

 

Then, age of the elder child = (x+2) years.

 

So, x+(x+2) =8 <=> x=3

 

Age of younger child  =  3 years.

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Filed Under: Average

132 44753
Q:

If 60% of a number is added to 60, then the result is equal to the number itself. What is the number?

 

A) 150   B) 120  
C) 100   D) 180  
 
Answer & Explanation Answer: A) 150  

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

4 44678
Q:

If the product 4864*9 P 2 is divisible by 12, the value of p:

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

Explanation:

Clearly 4864 is divisible by 4
So, 9 P 2 must be divisible by 3. So (9+P+2) must be divisible by 3.
So P=1.

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Filed Under: Numbers

77 44632
Q:

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

 

A) Trouser – Garment B) Ostrich – Bird
C) Table – Furniture D) Stationery – Pen  
 
Answer & Explanation Answer: D) Stationery – Pen  

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 44607
Q:

Sinθ Cos(90 - θ) + Cosθ Sin(90 - θ) = 

 

A) 1 B) 2
C) -1 D) 0
 
Answer & Explanation Answer: A) 1

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

0 44543
Q:

Find the next number in the given number series?

2, 19, 0, 21, –2, ?

A) 23 B) 25
C) 27 D) 29
 
Answer & Explanation Answer: A) 23

Explanation:

The given number series 2, 19, 0, 21, –2, ? follows a pattern,

2

2 + 17 = 19

19 - 19 = 0

0 + 21 = 21

21 - 23 = -2

-2 + 25 = 23

 

Hence, the next number in the series is 23.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

2 44511
Q:

In what proportion water must be added to spirit to gain 20% by selling it at the cost price ?

Answer

Let the C.P of spirit be = Rs.10 per litre


Then S.P l litre of the mixture = Rs. 11


Profit = 20%


 


Therefore, C.P of the mixture = Rs. 100120×10 = Rs. 25/3 per litre


 



 Therefore, Ratio of water and spirit = 1 : 5

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Subject: Alligation or Mixture

188 44450