Quantitative Aptitude - Arithmetic Ability Questions

Q:

A company reduces his employee in the ratio 14 : 12 andincreases their wages in the ratio 16:18. Determine whetherthe bill of wages increases or not and in what ratio

A) Decreases, 28: 27 B) Increases, 27:28
C) Decreases, 29:28 D) Increases, 28:29
 
Answer & Explanation Answer: A) Decreases, 28: 27

Explanation:

Let the initial employee be 14a and final employee be 12a

similarly initial wage is 16b and final wage be 18b

Total initial wage = 14a × 16b = 224ab,

total final wage= 12a × 18b = 216ab

So clearly wages decreases and ratio = 224ab: 216ab= 28 : 27

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Filed Under: Ratios and Proportions

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Q:

A shopkeeper earns a profit of 15% after selling a book at 20% discount on the printed price . The ratio of the cost price and printed price of the book is

A) 20:23 B) 23:20
C) 16:23 D) 23:16
 
Answer & Explanation Answer: C) 16:23

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

5 2150
Q:

If ax= by= cz and b2= ac, then what is 1x+1z equal to ?

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

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A shopkeeper by selling 21 items earns a profit equal to the selling price of 1 item. What is his profit percentage?

A) 5.5 B) 2.2
C) 2 D) 5
 
Answer & Explanation Answer: D) 5

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

4 2149
Q:

Radius of base of a hollow cone is 8 cm and its height is 15 cm. A sphere of largest radius is put inside the cone. What is the ratio of radius of base of cone to the radius of sphere?

A) 5 : 3 B) 4 : 1
C) 2 : 1 D) 7 : 3
 
Answer & Explanation Answer: A) 5 : 3

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

6 2148
Q:

If N = 0.369369369369... and M = 0.531531531531..., then what is the value of (1/N) + (1/M)?

A) 11100/2419 B) 111/100
C) 1897/3162 D) 2419/11100
 
Answer & Explanation Answer: A) 11100/2419

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

If a saree is sold for Rs 2880 the seller will face 10% loss, at what price (in Rs) should he sell to gain 20% profit?

A) 4830 B) 3840
C) 3480 D) 4380
 
Answer & Explanation Answer: B) 3840

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

A and B have to type a book together containing 120 pages. A takes 9 hrs to type 36 pages and B takes 5 hrs to type 40 pages. A typed first 60 pages alone and the last 60 pages were typed by A and B together. How much time (in hours) will be taken to type the complete book?

A) 24 B) 20
C) 12 D) 15
 
Answer & Explanation Answer: B) 20

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

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