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Q:

In the following question, by using which mathematical operators will the expression become correct?
15 _ 3 _ 4 _ 20

A) x, ÷ and > B) ÷, x and <
C) ÷, x and = D) +, x and =
 
Answer & Explanation Answer: C) ÷, x and =

Explanation:
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Filed Under: Inserting The Missing Character
Exam Prep: Bank Exams

3 1571
Q:

Which of the following contributes the maximum earning in Indian Railways?

A) Passenger Earning B) Goods Traffic Earning
C) Sundry Earning D) Other Coach Earning
 
Answer & Explanation Answer: B) Goods Traffic Earning

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Filed Under: General Awareness
Exam Prep: Bank Exams

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Q:

If the shopkeeper sells an item at Rs 1600 which is marked as Rs 2000, then what is the discount he is offering?

A) 25 percent B) 20 percent
C) 30 percent D) 10 percent
 
Answer & Explanation Answer: B) 20 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

How many balls of radius 2 cm can be made by melting a bigger ball of diameter 16 cm? (Take π = 22/7)

A) 64 B) 128
C) 32 D) 96
 
Answer & Explanation Answer: A) 64

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Filed Under: Volume and Surface Area
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 sphere to that of cone?

A) 6√3:1 B) 7 : 2
C) 3√3:1   D) 5√3:1
 
Answer & Explanation Answer: A) 6√3:1

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)
Volume of sphere/volume of cone = 43πr1313πr22h = 6√3:1
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

For which value of ‘g’ the linear graph of 6x + 12y +9 = 0 and 2x + gy + 3 = 0 has infinite number of solutions?

A) 3 B) 4
C) 6 D) 9
 
Answer & Explanation Answer: B) 4

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Consider the given statement/s to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statement.

Statements:

1. All parrots are chicks.
2. All birds are chicks.

Conclusions:

I. Some birds are parrots.
II. Some chicks are parrots.

A) Both conclusion I and conclusion II follow B) None of the two conclusions follows
C) Only conclusion I follows D) Only conclusion II follows
 
Answer & Explanation Answer: D) Only conclusion II follows

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Filed Under: Statement and Conclusions
Exam Prep: Bank Exams

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Q:

The outermost layer of sun is called

A) Lithosphere B) Chromosphere
C) Photosphere D) Corona
 
Answer & Explanation Answer: B) Chromosphere

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Filed Under: General Science
Exam Prep: Bank Exams

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