6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $a + b + c = 15 a n d \frac{1}{a} + \frac{1}{b} + \frac{1}{c} = \frac{71}{a b c},$ then the $a^{3} + b^{3} + c^{3} - 3 a b c$ is

A) 160	B) 180
C) 200	D) 220

Answer & Explanation Answer: B) 180

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

Length of the sides of a triangle are a, b, c respectively. If $a^{2} + b^{2} + c^{2} = ab + bc + ca$ then the triangle is

A) isosceles	B) equilateral
C) scalene	D) right-angled

Answer & Explanation Answer: B) equilateral

Explanation:

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

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Q:

Slope of the line AB is -2/3. Co-ordinates of points A and B are (x , -3) and (5 , 2) respectively. What is the value of x?

A) 4	B) -14
C) 12.5	D) -4

Answer & Explanation Answer: C) 12.5

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Two numbers are in the ratio 4:5 and their HCF is 13. Their LCM is

A) 260	B) 52
C) 65	D) 265

Answer & Explanation Answer: A) 260

Explanation:

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

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Q:

The value of 122 + 345 - 3 / 1116 x 372 is

A) 466	B) 469
C) 446	D) 460

Answer & Explanation Answer: A) 466

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the area of the square, if the length of its diagonal is 13√2 units?

A) 104 sq.units	B) 169 sq.units
C) 338 sq.units	D) 676 sq.units

Answer & Explanation Answer: B) 169 sq.units

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The sum of two numbers is equal to thrice their difference. If the smaller of the numbers is 10 find the other number.

A) 15	B) 30
C) 40	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

Let larger number be x and smaller number be y.

Also, y = 10

According to question,

⇒(x + y) = 3((x –y)⇒(x + 10) = 3(x –10)

⇒2x = 40⇒x = 20

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

Reflection of the point (1,4) in the xaxis is

A) (1,4)	B) (1,-4)
C) (-1,4)	D) (-1,-4)

Quantitative Aptitude - Arithmetic Ability Questions

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