Quantitative Aptitude - Arithmetic Ability Questions

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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Q:

If x + y = 10 and xy = 4, then what is the value of x4 + y4?

A) 8464 B) 8432
C) 7478 D) 6218
 
Answer & Explanation Answer: B) 8432

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a(a + b + c) = 45, b(a + b + c) = 75 and c(a + b + c) = 105, then what is the value of (a2 + b2 + c2 )?

A) 75 B) 83
C) 217 D) 225
 
Answer & Explanation Answer: B) 83

Explanation:
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Q:

Area of 4 walls of a cuboid is 448 sq cm, its length is 18 cm and height is 8 cm. What is its breadth (in cm)?

A) 10 B) 9
C) 8 D) 7
 
Answer & Explanation Answer: A) 10

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

An angle is (2/3)rd of its supplementary angle. What is the measure of the angle?

A) 108° B) 72°
C) 54° D) 36°
 
Answer & Explanation Answer: B) 72°

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

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Q:

 In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by aLogic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives

A) (4, 8, 16) B) (5, 10, 20)
C) (6, 12, 24) D) (7, 14, 21)
 
Answer & Explanation Answer: D) (7, 14, 21)

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

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Q:

If 35% of (x + y) = 40% of (x – y), then x is what percentage of y?

A) 1500 B) 150
C) 15 D) 105
 
Answer & Explanation Answer: A) 1500

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams , CAT

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Q:

If 5 sin2θ+ 4 cos2θ= 9/2 and 0 <θ<Π/2 then tanθ is equal to?

A) 1 B) 0
C) -1 D) 1/4
 
Answer & Explanation Answer: A) 1

Explanation:
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