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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Which of the following is not a quadratic equation?

A) 3x(x + 5) ­11 = 2x(x -­ 2) + 6 B) 4x(x + 3) + 7 = 4x(x -­ 11) + 9
C) x(x + 2) ­15 = x(2x -­ 5) + 11 D) 4x - 6x +­ 9 = 0
 
Answer & Explanation Answer: B) 4x(x + 3) + 7 = 4x(x -­ 11) + 9

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is 15% of 34 ?

A) 5.1 B) 5
C) 5.2 D) 4.9
 
Answer & Explanation Answer: A) 5.1

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

In each of the following questions, a question is followed by information given in them Statements I, II and III. You have to study the question along with the statements and decide the information given in which or the statements/ is necessary to answer the question. 

What is the cost of flooring the rectangular hall?

I. Length and the breadth of the hall are in the ratio of 3:2

II. Length of the hall is 48 m and cost of flooring is ₹ 850 Per sq.m.

III. Perimeter of the hall is 160 m and cost of flooring is ₹ 850 per sq m

A) I and II B) I and III
C) Only III D) I and either II or III
 
Answer & Explanation Answer:

Explanation:

From I and II,
Length = 3x = 48 m
∴ x = 16
Breath = 2x = 32 m
Hence, Area of floor = 48 × 32
Cost of flooring = 48 × 32 × 850 = ₹ 1305600
From I and III, 2(l +b) = 160
2(3x + 2x) = 160
10x = 160
∴ x = 16
∴ Length = 3 × 16 = 48 m
Breadth = 2x = 32m
Cost of flooring = (48 × 32) × 850 = ₹ 1305600
Similarly, from II and III, we can find
l = 48 m
b = 32 m
and Total cost of flooring = ₹ 1305600

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE
Job Role: Bank Clerk , Bank PO

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Q:

The average cost of 5 items in a shopping list is Rs 650. If one more item whose cost is Rs 1400 is added to the list what will be the new average (in Rs)?

A) 775 B) 875
C) 725 D) 825
 
Answer & Explanation Answer: A) 775

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Filed Under: Average
Exam Prep: Bank Exams

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Q:

There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 10000 after 3 years at the same rate?

A) Rs 1576.25 B) Rs 6305
C) Rs 7881.25 D) Rs 4728.75
 
Answer & Explanation Answer: A) Rs 1576.25

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?

A) 60 B) 150
C) 120 D) 90
 
Answer & Explanation Answer: A) 60

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

If a taxi going at 40 km/hr takes 25 minutes to travel a certain distance, by how much should it increase its speed (in km/hr) to travel the same distance in 20 minutes?

A) 50 B) 5
C) 25 D) 10
 
Answer & Explanation Answer: D) 10

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

Two circles are having radii 9 cm and 12 cm. The distance between their centres is 15 cm. What is the length (in cm) of their common chord?

A) 6.8 B) 13.6
C) 7.2 D) 14.4
 
Answer & Explanation Answer: D) 14.4

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

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