Quantitative Aptitude - Arithmetic Ability Questions

Q:

Before a battle the ratio of tanks to planes in an army was 5 : 3. During the war 1000 tanks were destroyed and 800 planes were destroyed. The ratio of tanks to planes became 2 : 1. What is the number of tanks after the war.

A) 2000 B) 1000
C) 3000 D) 4000
 
Answer & Explanation Answer: A) 2000

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If 2/3(6x/5 - 1/4) + 1/3 = 9x/5, then what is the value of x?

A) 1/6 B) -1/6
C)  1/5 D) -1/5
 
Answer & Explanation Answer: A) 1/6

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If the rice is sold at Rs 56 per kg, there would be a 40% loss. To earn a profit of 20% what should be the price of rice (per kg)?

A) 112 B) 108
C) 116 D) 124
 
Answer & Explanation Answer: A) 112

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

There were 35 studentsina hostel.Ifthenumber of studentsbe increased by 7, the expenditure on food increases by Rs 42 per day while the average expenditure of studentsis reduced by Rs 1. What was the initial expenditure on food per day?

A) Rs 432 B) Rs 442
C) Rs 420 D) Rs 400
 
Answer & Explanation Answer: C) Rs 420

Explanation:

Let the original avg expenditure be x

Total expenditure = 35x

⇒35x + 42 = (x-1) X 42

⇒35x + 42 = 42x –42

⇒7x = 84

⇒x = 12

So, initial expenditure = 12 X 35 = 420

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Average of the runs of 133 players of a team is 38. If the average of the runs of the male players is 43 and the average of the runs of the female players is 24, then what will be the ratio of the total runs of male players and the total runs of female players respectively?

 

A) 301 : 60   B) 7 : 3  
C) 39 : 11   D) 60 : 207
 
Answer & Explanation Answer: A) 301 : 60  

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

Find the Odd one out.

A) C B) A
C) B D) D
 
Answer & Explanation Answer: C) B

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Filed Under: Odd Man Out

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Q:

If A has got 20% more marks than B, then by what percent marks of B are less than the marks of A?

A) 16.66 B) 20
C) 33.33 D) 14.28
 
Answer & Explanation Answer: A) 16.66

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If x + y + z = 22 and xy + yz + zx = 35, then what is the value of (x  y)2 + (y  z)2 + (z  x)2?

A) 793 B) 681
C) 758 D) 715
 
Answer & Explanation Answer: C) 758

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Filed Under: Simplification
Exam Prep: Bank Exams

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