6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Select the odd number from the given alternatives.

A) 24	B) 39
C) 65	D) 51

Answer & Explanation Answer: C) 65

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

A) 1:2	B) 2:3
C) 3:4	D) 3:5

Answer & Explanation Answer: B) 2:3

Explanation:

Let the ratio be x : y
Total boys = 16.4 X x
Total girls = 15.4 X y
Total number of students in class = 16.4x + 15.4y
The average age of all students is 15.8
The total age of boys is 15.8x
The total age of girls is 15.8y
16.4x + 15.4y = 15.8x + 15.8y
0.6 x = 0.4 y
x/y = 0.4/0.6 = 2/3

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

What is the simplified value of $\sqrt{12} - \frac{1}{\sqrt{3}}$ ?

A) 5√3	B) 5/√3
C) 3√5	D) 3/√5

Answer & Explanation Answer: B) 5/√3

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

In the given figure, ABCD is a square of side 14 cm. E and F are mid points of sides AB and DC respectively. EPF is a semicircle whose diameter is EF. LMNO is a square . What is the area (in sq.cm) of the shaded region?

A) 108.5	B) 94.5
C) 70	D) 120

Answer & Explanation Answer: B) 94.5

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The circumference of a circle is 88 cm. Find its radius (in cm).

A) 28	B) 15
C) 14	D) 30

Answer & Explanation Answer: C) 14

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

If ${(\sqrt{3} + 1)}^{2} = x + \sqrt{3 y},$ then the x+y is

A) 2	B) 4
C) 6	D) 8

Answer & Explanation Answer: C) 6

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Tanya got an increment of 15% in her salary. If her enhanced salary is Rs.14,030. What was her original salary?

A) Rs.12200	B) Rs.12300
C) Rs.12400	D) Rs.12000

Answer & Explanation Answer: A) Rs.12200

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Find co-ordinates of the mid point of the segment joining points C (3,-5) and D (-7,3).

A) (-2, -1)	B) (5, -4)
C) (-5, 4)	D) (2, 1)

Quantitative Aptitude - Arithmetic Ability Questions

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