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 Quantitative Aptitude - Arithmetic Ability Questions

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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 44801
Q:

The length of a diagonal in cms of a rectangle of length 5 cm and width 6 cm is

 

A) 61 B) ±61
C) 11 D) ±11
 
Answer & Explanation Answer: A) 61

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

3 44736
Q:

If p : q : r = 2 : 3 : 5, then what will be the ratio of (p + q + r) : (3p + q – r)?

 

A) 5 : 2   B) 10 : 17  
C) 9 : 4 D) 5 : 4
 
Answer & Explanation Answer: A) 5 : 2  

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

10 44649
Q:

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

 

A) EHL   B) JMP  
C) SVY   D) QTW
 
Answer & Explanation Answer: A) EHL  

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

1 44631
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 44566
Q:

X boys can do a piece of work in 24 days. In how much time (in days), 2X boys will do half of the work?

 

A) 6 B) 12
C) 18 D) 8
 
Answer & Explanation Answer: A) 6

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

0 44544
Q:

A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is ?

A) 45 kmph B) 25 kmph
C) 30 kmph D) 50 kmph
 
Answer & Explanation Answer: D) 50 kmph

Explanation:

Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec.
[(25/2) x (18/5)] km/hr = 45 km/hr.
Let the speed of the train be 'S' km/hr.
Then, relative speed = (S - 5) km/hr.
S - 5 = 45 => S = 50 km/hr.

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Filed Under: Problems on Trains
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

49 44508
Q:

A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it would take 10 days more for the work to be finished. How many men were there originally?

A) 75 B) 82
C) 100 D) 110
 
Answer & Explanation Answer: D) 110

Explanation:

Originally let there be x men.

Less men, More days     (Indirect Proportion)

 Therefore, (x-10) : x  :: 100 :110

=> (x - 10) * 110 = x * 100    => x= 110

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Filed Under: Chain Rule

97 44495