6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What will be the value of $a^{3} + b^{3}, if a^{2} + b^{2} = 32 and a + b = 8$ ?

A) 8	B) 32
C) 128	D) 256

Answer & Explanation Answer: C) 128

Explanation:

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams , CAT

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Q:

Sunil started his journey at 2:33:34 p.m. and reached the destination at 4:43:45p.m. Anil started the journey 45 min 27 secs after Sunil and reached the destination 37 mins 16 secs after him. How long did Anil take to complete his journey?

A) 1 hour 59 mins	B) 2 hours 2 mins
C) 2 hours 1 min 12 secs	D) 2 hours 2 secs

Answer & Explanation Answer: B) 2 hours 2 mins

Explanation:

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

When Vijay sells 12 pens, he gains the selling price of 2 pens. Calculate his % profit?

A) 15%	B) 20%
C) 18%	D) 12%

Answer & Explanation Answer: B) 20%

Explanation:

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

The corners of a square of side ‘a’ are cut away so as to form a regular octagon. What is the side of the octagon?

A) a(√2 –1)	B) a(√3 –1)
C) a/√2+2	D) a/3

Answer & Explanation Answer: A) a(√2 –1)

Explanation:

Since we are forming a regular octagon

so AE = AL = FB = BG and so on

So AE = SB = x/√2

AE + EF + FB = side of square = a (Given)

So x/√2 + x + x/√2 = a

X = a/(√2+1) = a(√2 -1)

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

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Q:

A cylindrical vessel of radius 8 cm is partially filled with water. By how much will the water level rise if a sphere of radius 7 cm is completely immersed in this water?

A) 7.15 cm	B) 14.3 cm
C) 21.45 cm	D) 28.6 cm

Answer & Explanation Answer: A) 7.15 cm

Explanation:

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

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Q:

The LCM of 14, 21 and 35 is

A) 7	B) 140
C) 70	D) 210

Answer & Explanation Answer: D) 210

Explanation:

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

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Q:

Find the odd word/letters/number from the given alternatives.

A) 343	B) 64
C) 75	D) 27

Answer & Explanation Answer: C) 75

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

The variance of a set of data is 121. Then the standard deviation of the data is

A) +-11	B) 11
C) 21	D) 60.5

Quantitative Aptitude - Arithmetic Ability Questions

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