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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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An 80 litre mixture of water and acid contains 20% acid. How much acid should be added to make the acid 60% in the new mixture?

A) 60	B) 80
C) 70	D) 90

A) 60

B) 80

C) 70

D) 90

Answer & Explanation Answer: B) 80

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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ax + 3y = 6 has slope -2/3. What is the value of a?

A) -2	B) 2
C) 3	D) -3

A) -2

B) 2

C) 3

D) -3

Answer & Explanation Answer: B) 2

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Filed Under: Simplification
Exam Prep: Bank Exams

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

A) 5√3	B) 5/√3
C) 3√5	D) 3/√5

A) 5√3

B) 5/√3

C) 3√5

D) 3/√5

Answer & Explanation Answer: B) 5/√3

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If x=aCosθCosΦ, y = aCosθSinΦ and z= aSinθ, then the value of $x^{2} + y^{2} + z^{2}$ is

A) 2a2	B) 0
C) 4a2	D) a2

A) 2a2

B) 0

C) 4a2

D) a2

Answer & Explanation Answer: D) a2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Find the value of ${[6 {[8^{\frac{1}{3}} + 64^{\frac{1}{3}}]}^{3}]}^{\frac{1}{4}}$

A) 5	B) 6
C) 36	D) 216

A) 5

B) 6

C) 36

D) 216

Answer & Explanation Answer: B) 6

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

A) White – Colour	B) Blue – Colour
C) Yellow – Orange	D) Black – Colour

A) White – Colour

B) Blue – Colour

C) Yellow – Orange

D) Black – Colour

Answer & Explanation Answer: C) Yellow – Orange

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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

A) ST39	B) GF15
C) NO29	D) LM25

A) ST39

B) GF15

C) NO29

D) LM25

Answer & Explanation Answer: B) GF15

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The value of the expression $2 (\sin^{6} θ + \cos^{6} θ) - 3 (\sin^{4} θ + \cos^{4} θ) + 1$ is

A) -1	B) 0
C) 1	D) 2

A) -1

B) 0

C) 1

D) 2

Answer & Explanation Answer: B) 0

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Filed Under: Simplification
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