6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

In a $∆ ABC$ , BC is extended upto D, $∡$ ACD =120°, $∡$ B = 1/2 A. Then $∡$ A is

A) 60°	B) 75°
C) 80°	D) 90°

Answer & Explanation Answer: C) 80°

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

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Q:

The line passing through (-2,5) and (6,b) is perpendicular to the line 20x + 5y = 3. Find b?

A) -7	B) 4
C) 7	D) -4

Answer & Explanation Answer: C) 7

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Choose the odd word/letters/number/number pair from the given alternatives.

A) PON	B) SRQ
C) XYZ	D) VUT

Answer & Explanation Answer: C) XYZ

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

Determine the value of $\frac{a^{2} + b^{2}}{a^{3} + b^{3}}$ when a = 2+√3 and b = 2-√3.

A) 0.27	B) 0.42
C) 0.58	D) 0.93

Answer & Explanation Answer: A) 0.27

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

What is the value of $\sin (90 ° + 2 A) [4 - \cos 2 (90 ° - 2 A)] ?$

A) 2(cos3 A – sin3 A)	B) 2(cos3 A + sin3 A)
C) 4(cos6 A+ sin6 A)	D) 4(cos6 A – sin6 A)

Answer & Explanation Answer: D) 4(cos6 A – sin6 A)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a cylinder of radius 4.3 cm and height 4.8 cm is melted and constructed into a cone of the same radius, what will be the height of this cone? (Use π = 22/7)

A) 28.8 cm	B) 14.4 cm
C) 7.2 cm	D) 21.6 cm

Answer & Explanation Answer: B) 14.4 cm

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Filed Under: Area
Exam Prep: Bank Exams

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Q:

The upstream speed of the boat is 40 kmph and the speed of the boat in still water is 55 kmph. What is the downstream speed of the boat?

A) 75 kmph	B) 70 kmph
C) 60 kmph	D) 65 kmph

Answer & Explanation Answer: B) 70 kmph

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

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Q:

If the length of the side of an equilateral triangle is 6 cm, what is its area?

A) 18√3 sq cm	B) 36√3 sq cm
C) 27√3 sq cm	D) 9√3 sq cm

Quantitative Aptitude - Arithmetic Ability Questions

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