Aptitude and Reasoning Questions

Q:

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in x­axis to (­-4,2). The co-­ordinates of point R are

A) (­4,­-2) B) (­-4,2)
C) (4,2) D) (-4,­-2)
 
Answer & Explanation Answer: C) (4,2)

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Filed Under: Simplification
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Q:

A solid sphere of radius 9 cm is melted to form a sphere of radius 6 cm and a right circular cylinder of same radius. The height of the cylinder so formed is

A) 19 cm B) 21 cm
C) 23 cm D) 25 cm
 
Answer & Explanation Answer: A) 19 cm

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Filed Under: Volume and Surface Area
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Q:

The sum of the cubes of two numbers in the ratio 3 : 4 is 5824. The sum of the numbers is:

A) 21 B) 28
C) 24 D) 14
 
Answer & Explanation Answer: B) 28

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Filed Under: Problems on Numbers
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Q:

What is the diameter (in cm) of a sphere of surface area 154 sq cm?

A) 3.5 B) 14
C) 10.5 D) 7
 
Answer & Explanation Answer: D) 7

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Filed Under: Volume and Surface Area
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Q:

The following figure shows the number of students (in thousands) admitted and passed out per year in a college during years 2000 to 2004. study the figure and answer the questions.

During 2000 to 2003, the ratio of the total number fo the students passed out to the total number of students admitted is

A) 17/23 B) 17/6
C) 11/23 D) 5/7
 
Answer & Explanation Answer: D) 5/7

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Filed Under: Bar Charts
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Q:

If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is

A) 6 B) 8
C) 10 D) 10.5
 
Answer & Explanation Answer: C) 10

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Filed Under: Volume and Surface Area
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Q:

Select the missing number?

A) 3 B) 2
C) 4 D) 5
 
Answer & Explanation Answer: A) 3

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Filed Under: Arithmetical Reasoning
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Q:

cos(A+B) + cos(A-B) is equal to

A) 2cosAcosB B) 2sinAsinB
C) 2sinAcosB D) 2cosAsinB
 
Answer & Explanation Answer: A) 2cosAcosB

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