6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The marked price of a ceiling fan is Rs. 1200 and the shopkeeper allows a discount of 5 % on it. Then selling price of the fan is

A) Rs. 1410	B) Rs. 1400
C) Rs. 1140	D) Rs. 1104

Answer & Explanation Answer: C) Rs. 1140

Explanation:

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Q:

The circumference of a circle is equal to the perimeter of an equilateral triangle. If the radius of the circle is 7 cm what is the length of the side of the equilateral triangle?

A) 22/3 cm	B) 44/3 cm
C) 44 cm	D) 22 cm

Answer & Explanation Answer: B) 44/3 cm

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Filed Under: Area
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Q:

If x - 1/x = 1 then what is the value of $\frac{1}{x} (\frac{1}{x - 1} - \frac{1}{x + 1} + \frac{1}{x^{2} + 1} - \frac{1}{x^{2} - 1}) ?$

A) ±√5	B) 2/5
C) ±2/√5	D) ±√5/2

Answer & Explanation Answer: C) ±2/√5

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Q:

In the following question, select the odd word from the given alternatives.

A) Flower	B) Fruit
C) Leaves	D) Root

Answer & Explanation Answer: D) Root

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Filed Under: Odd Man Out
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Q:

Sita told her friend Gita " I am leaving today and will reach Mumbai tomorrow for my exams starting the day after tomorrow, which is Friday". What day is tomorrow in this conversation?

A) Wednesday	B) Thursday
C) Tuesday	D) Saturday

Answer & Explanation Answer: B) Thursday

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Filed Under: Calendar
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Q:

A spherical lead ball of radius 6 cm is melted and small lead balls of radius 3 mm are made. The total number of possible small lead balls is

A) 4250	B) 4000
C) 8005	D) 8000

Answer & Explanation Answer: D) 8000

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Q:

What is the fourth proportional to 72, 168 and 150?

A) 450	B) 300
C) 350	D) 400

Answer & Explanation Answer: C) 350

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Filed Under: Ratios and Proportions
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Q:

The sum of length, breadth and height of a cuboid is 22 cm and the length of its diagonal is 14 cm.
What is the surface area of the cuboid?

A) 288 sq.cm	B) 216 sq.cm
C) 144 sq.cm	D) Cannot be determined due to insufficient data

Answer & Explanation Answer: A) 288 sq.cm

Explanation:

Let lengths, breadth and height of cuboid be l, b and h respectively

According to question

l+b+h = 22cm......(i)

and

√(l^2+b^2+h^2) = 14cm .....(ii)

Surface area of cuboid = 2(lb+bh+lh)

Squaring eq (i) gives

l^{2} + b^{2} + h^{2}

Quantitative Aptitude - Arithmetic Ability Questions

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