6500+ Quantitative Aptitude Questions and Answers With Explanation

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

1 1764

Q:

What is the average of all natural numbers from 21 to 39?

A) 30	B) 31
C) 29	D) 28

Answer & Explanation Answer: A) 30

Explanation:

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Filed Under: Average
Exam Prep: Bank Exams

3 1764

Q:

In $∆ XYZ$ measure of angle Y is 90 deg. If sinX = 4/5, and XY = 6cm, then what is the length (in cm) of side YZ?

A) 10	B) 5
C) 8	D) 4

Answer & Explanation Answer: C) 8

Explanation:

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

0 1764

Q:

If tan θ + cot θ = x, then what is the value of $\tan^{4} θ + \cot^{4} θ$ ?

A) (x3 – 3)2 + 2	B) (x4 – 2x) + 4
C) x2 (x2 – 4) + 2	D) x

Answer & Explanation Answer: C) x2 (x2 – 4) + 2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1763

Q:

What is the value of (cos 40° – cos 140°)/(sin 80° + sin 20°)?

A) 2√3	B) 2/√3
C) 1/√3	D) √3

Answer & Explanation Answer: B) 2/√3

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1763

Q:

If xy (x + y) = m, then the value of $x^{3} + y^{3} + 3 m$ is:

A) m3xy	B) m3x+y3
C) m3x3y3	D) mx3y3

Answer & Explanation Answer: D) mx3y3

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1762

Q:

If $a^{3} - b^{3} = 91$ and a - b = 1, then what is the value of ab?

A) 27	B) 6
C) 9	D) 30

Answer & Explanation Answer: D) 30

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Ticket for an adult is Rs 1000 and a child is Rs 500. One child goes free with two adults. If a group has 17 adults and 5 children what is the discount the group gets?

A) 14.7 percent	B) 32 percent
C) 12.82 percent	D) 22 percent

Quantitative Aptitude - Arithmetic Ability Questions

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