Quantitative Aptitude - Arithmetic Ability Questions

Q:

A mixture contains liquid A and liquid B in the ratio of 5 : 4. If 2 litres of liquid B is added to it, then the ratio of liquid A and liquid B becomes 7 : 6. What is the quantity (in litres) of liquid A in the mixture?

 

A) 32 B) 35
C) 40 D) 42
 
Answer & Explanation Answer: B) 35

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

In Δ ABC , if ∠BAC = 90° and AB = AC , then ∠ABC is

A) 30° B) 60°
C) 45° D) 25°
 
Answer & Explanation Answer: C) 45°

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

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Q:

Length of the sides of a triangle are a, b, c respectively. If a2 + b2 + c2 = ab +bc + ca then the triangle is

A) isosceles B) equilateral
C) scalene D) right­-angled
 
Answer & Explanation Answer: B) equilateral

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

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Q:

If curved surface area of a cylinder is 1320 sq cm and height is 10 cm, find its radius?

A) 21 cm B) 42 cm
C) 63 cm D) 10.5 cm
 
Answer & Explanation Answer: A) 21 cm

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

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Q:

cosA/(1 -­ sin A) is equal to

A) (secA -­ tanA) B) (secA + tanA)
C) √[(secA + tanA)] D) √[(secA -­ tanA)]
 
Answer & Explanation Answer: B) (secA + tanA)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

From the top of a tower 60 mts high the angle of depression of the top and bottom of a pole are observed to be 45° and 60° respectively. If the pole and tower stand on the same plane, the height of the pole in meters is

A) 60(√3­1) B) 20(√3­1)
C) 20(3­√3) D) 20(√3+1)
 
Answer & Explanation Answer: C) 20(3­√3)

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Filed Under: Height and Distance
Exam Prep: Bank Exams

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Q:

A sum of Rs 20000 becomes Rs 32000 in 12 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 2 years?

 

A) 21750 B) 22050
C) 23250 D) 24650
 
Answer & Explanation Answer: B) 22050

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

If (8 - 10x) - (13x - 2) = -9, then the value of x is

A) -19/23 B) 19/23
C) -1/23 D) 1/23
 
Answer & Explanation Answer: B) 19/23

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Filed Under: Simplification
Exam Prep: Bank Exams

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