Exams


Q:

If x is a whole number, then x²(x² - 1) is always divisible by ?

A) 4 B) 8
C) 12 D) None
 
Answer & Explanation Answer: C) 12

Explanation:

we can do this by trial and error method.

Putting x = 2,we get 2²(2² - 1) = 12.
checking with other integers, the above equation always gives a value which is a multiple of 12,
So, x²(x² - 1) is always divisible by 12.

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Filed Under: Numbers
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14 14786
Q:

5x - 6 = 3x - 8

Solve the above equation.

A) 2 B) -1
C) -2 D) 1
 
Answer & Explanation Answer: B) -1

Explanation:

Given 5x - 6 = 3x - 8

5x - 3x = -8 + 6

2x = -2

=> x = -1.

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Filed Under: Mathematical Operations
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23 14765
Q:

The primary purpose of an operating system is ?

A) To allow people to use the computer B) To make computers easier to use
C) To keep systems programmers employed D) To make the most efficient use of the computer hardware
 
Answer & Explanation Answer: D) To make the most efficient use of the computer hardware

Explanation:

The primary purpose of an operating system is to make the most efficient use of the computer hardware.

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams
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29 14756
Q:

Refer the below data and answer the question.

What is the average bonus (in rupees)?

A) 5419995 B) 160000
C) 361333 D) 126000
 
Answer & Explanation Answer: C) 361333

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

1 14754
Q:

Refer the below data table and answer the following question.

What was the increase in the height of the child from the 7th Birthday to the 13th Birthday?

A) 55 cms B) 50 cms
C) 45 cms D) 40 cms
 
Answer & Explanation Answer: C) 45 cms

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 14750
Q:

Arrange the given words in the sequence in which they occur in the dictionary.

 

1. Scarecrow

2. Scenery

3. Satisfied

4. Shallow

5. Spelling

 

A) 42315 B) 31245
C) 12435 D) 23451
 
Answer & Explanation Answer: B) 31245

Explanation:
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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams , CAT , GRE , TOEFL

0 14747
Q:

The oldest type of energy known to man is _____?

A) Geothermal Energy B) Solar Power
C) Wind Power D) Tidal Power
 
Answer & Explanation Answer: A) Geothermal Energy

Explanation:

Geothermal energy is heat energy generated and stored in the Earth. Geothermal energy has been used for thousands of years in some countries for cooking and heating. It is simply power derived from the Earth's internal heat.

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Filed Under: General Awareness
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26 14740
Q:

If two complimentary angles are in the ratio of 4 : 5, find the greater angle.

 

A) 40 deg B) 50 deg
C) 60 deg D) 30 deg
 
Answer & Explanation Answer: B) 50 deg

Explanation:
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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

1 14737