6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the slope of the line perpendicular to the line passing through the points (8,2) and (3,1)?

A) 5	B) 3/5
C) 5/3	D) 1/5

Answer & Explanation Answer: A) 5

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

List price of TV is Rs. 2300 and discount series found to be 25% and 10%. Then the selling price of TV is

A) Rs.1255.5	B) Rs.1525.5
C) Rs.1552.5	D) Rs.1555.2

Answer & Explanation Answer: C) Rs.1552.5

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Weight of A and B are in the ratio 11 : 8. A’s weight increases by 40% and the total weight of A and B increases by 30%. What is the percentage increase in the B’s weight?

A) 10.25	B) 16.25
C) 12.5	D) 18.75

Answer & Explanation Answer: B) 16.25

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If the angles of a triangle are in the ratio of 1 : 4 : 7, then find the ratio of the greatest angle to the smallest angle.

A) 7:2	B) 2:3
C) 7:1	D) 3:5

Answer & Explanation Answer: C) 7:1

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

A cube is inscribed in a sphere. A right circular cylinder is within the cube touching all the vertical faces. A right circular once is inside the cylinder. Their heights are same and the diameter of the cone is equal to that of the cylinder.

What is the ratio of the volume of the cube to that of the cylinder ?

A) 4 : 3	B) 21 : 16
C) 14 : 11	D) 45 : 32

Answer & Explanation Answer: C) 14 : 11

Explanation:

The top view of the given assembly will look like the figure above

Outermost is the sphere. Inside that there is a cube and within that there is a cone and cylinder with same radius.

Here side of cube = a

Diameter of Sphere = body diagnol = √3 a

Radius of sphere = √3 a/2 =r1

Height of Cylinder = Height of cone = side of cube = a =h

Radius of cylinder = Radius of cone = side of cube/2 = a/2 =r2(as shown in the figure)

\frac{Vcube}{Vcylinder} = \frac{a^{3}}{{πr}_{2}^{2} h} = 14 / 11

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

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Q:

Average age of 6 boys is 14 years. Average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?

A) 12.7	B) 14.6
C) 19.3	D) 8.5

Answer & Explanation Answer: A) 12.7

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

The simple and compound interest that can be earned in two years at the same rate is Rs 1500 and Rs 1575 respectively. What is the rate (% per annum) of interest?

A) 8	B) 10
C) 12	D) 5

Answer & Explanation Answer: B) 10

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Filed Under: Simple Interest
Exam Prep: Bank Exams

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Q:

R borrowed Rs. 1,200 at 13% per annum simple interest. What amount will R pay to clear the debt after 5 years?

A) Rs.1,860	B) Rs.1,800
C) Rs.1,980	D) Rs.2,000

Quantitative Aptitude - Arithmetic Ability Questions

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