Quantitative Aptitude - Arithmetic Ability Questions

Q:

The volume of a right circular cone, whose radius of the base is same as one-third of its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is :

A) 1:1 B) 3√4:1
C) 3√3:3√2 D) 3√4:3√3
 
Answer & Explanation Answer: D) 3√4:3√3

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Q:

If x + [1/(x + 7)] = 0, then what is the value of x – [1/(x + 7)]?

A) 3√5 B) 3√5 – 7
C) 3√5 + 7 D) 8
 
Answer & Explanation Answer: B) 3√5 – 7

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Q:

If the average age of four children is 12 years and the average age of these children and their fathers is 20 years, what is the age of the father?

A) 52 years B) 48 years
C) 62 years D) 54 years
 
Answer & Explanation Answer: A) 52 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

The amount received at 10% per annum compound interest after 3 yrs is Rs 10,648. What was the principal (in Rs)?

A) 8000 B) 9000
C) 8500 D) 7500
 
Answer & Explanation Answer: A) 8000

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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Q:

What is the equation of the line whose y­-intercept is 4 and making an angle of 45° with the positive x-­axis?

A) x + y = -­4 B) x -­ y = 4
C) x + y = 4 D) x -­ y = ­-4
 
Answer & Explanation Answer: D) x -­ y = ­-4

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a + b = 10 and ab = 24, then the value of a3 + b3 is

A) 280 B) 370
C) 520 D) 730
 
Answer & Explanation Answer: A) 280

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Filed Under: Simplification
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Q:

The price of a Television is Rs.14000 inclusive of VAT. If the rate of VAT is 12%, find the basic price of the Television.

A) Rs.13500 B) Rs.13000
C) Rs.12500 D) Rs.12000
 
Answer & Explanation Answer: C) Rs.12500

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

α and β are the roots of quadratic equation. If α + β = 8 and α – β = 2√5, then which of the following equation will have roots α4 and β4?

A) x2 – 1522x + 14641 = 0 B) x2 + 1921x + 14641 = 0
C) x2– 1764x + 14641 = 0 D) x2+ 2520x + 14641 = 0
 
Answer & Explanation Answer: A) x2 – 1522x + 14641 = 0

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Filed Under: Simplification
Exam Prep: Bank Exams

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