6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If x + y = 10 and xy = 4, then what is the value of $x^{4} + y^{4}$ ?

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:

The compound interest earned in two years at 8% per annum is Rs 4160. What is the sum (in Rs) invested?

A) 24000	B) 25000
C) 30000	D) 20000

Answer & Explanation Answer: B) 25000

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

In an examination 65% students pass in history and 55% students pass in hindi. If 5% students failed in both the subjects, then what is the percentage of students who have passed in both the subjects?

A) 15	B) 20
C) 25	D) 30

Answer & Explanation Answer: C) 25

Explanation:

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Filed Under: Percentage
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 a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

A) (7, 14, 21)	B) (5, 12, 19)
C) (3, 10, 17)	D) (9, 16, 35)

Answer & Explanation Answer: D) (9, 16, 35)

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

If $2 x + \frac{2}{9 x} = 4$ , then the value of $27 x^{3} + \frac{1}{27 x^{3}}$

A) 180	B) 198
C) 234	D) 252

Answer & Explanation Answer: B) 198

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If x + 1/x = √13, then $\frac{3 x}{(x^{2} - 1)}$ equal to

A) 3√13	B) √13/3
C) 1	D) 3

Answer & Explanation Answer: C) 1

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Filed Under: Simplification
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:

O is the circumcentre of ΔABC. If AO = 8 cm, then the length of BO is

A) 12 cm	B) 3 cm
C) 6 cm	D) 8 cm

Quantitative Aptitude - Arithmetic Ability Questions

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