CAT Questions

Q:

In a class of students, if 1 is absent rest of people can be divided into 6 equal parts and if 2 are absent rest of them are divided into 7 equal parts, how many students are present in the class ?

A) 28 B) 19
C) 57 D) 37
 
Answer & Explanation Answer: D) 37

Explanation:

Let the number of students in the class be 'x'.
Given if 1 is absent rest of people can be divided into 6 equal parts i.e (x-1)/6.........(1)
And given if 2 are absent rest of people can be divided into 7 equal parts i.e (x-2)/7.....(2)
From (1)&(2), we get
x-1/6 = ((x-2)/7) + 1
=> x = 37.

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Filed Under: Arithmetical Reasoning
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13 9343
Q:

Each edge of a cube is increased by 20% then the percentage increase in surface area of the cube is : 

A) 144% B) 40%
C) 44% D) 72.8%
 
Answer & Explanation Answer: C) 44%

Explanation:

The surface area of a cube = 6a2 =  6 side2

 

New  Surface area = 6 x 1.44a2

 

Therefore, 0.44a2a2x100 = 44%

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13 9323
Q:

Systematic name for (CuI)s ?

A) Copper Iodide B) Cobalt Fluoride
C) Ferrous Oxide D) All of the above
 
Answer & Explanation Answer: A) Copper Iodide

Explanation:

Copper Iodide is the systematic name of the given compound (CuI)s.

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Filed Under: Chemistry
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5 9322
Q:

Which of the following is a Composite number?

A) 0 B) 19
C) 29 D) 91
 
Answer & Explanation Answer: D) 91

Explanation:

Here in the given numbers 91 is a Composite number. Since it has factors of 7 and 13 other than 1 and itself.

 

Composite Numbers :

A composite number is a positive integer which is not prime (i.e., which has factors other than 1 and itself).

Examples :: 4, 6, 8, 12, 14, 15, 18, 20, ...

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18 9309
Q:

Solve The Logical Number Puzzle?

A) 72 B) 76
C) 84 D) 90
 
Answer & Explanation Answer: D) 90

Explanation:

The logic in the given puzzle is 

4 + 4 = 4 * 4+1 = 4 * 5 = 20

5 + 5 = 5 * 5+1 = 5 * 6 = 30

6 + 6 = 6 * 6+1 = 6 * 7 = 42

7 + 7 = 7 * 7+1 = 7 * 8 = 56

Similarly

9 + 9 = 9 * 9+1 = 9 * 10 = 90.

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35 9304
Q:

The term computer is derived from

A) Latin language B) Sanskrit language
C) Greek language D) German language
 
Answer & Explanation Answer: A) Latin language

Explanation:

The term computer is derivrd from the latin keyword 'computare' which means to calculate or to compute.

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31 9289
Q:

The speaker of the Lok Sabha can ask a member of the house to stop speaking and let another member speak. This phenomenon is known as :

A) Yielding the floor B) Crossing the floor
C) Calling Attention Motion D) Point of Order
 
Answer & Explanation Answer: A) Yielding the floor

Explanation:

Yielding the floor :  The speaker of the Lok sabha can ask a member of the house to stop speaking and let another member speak.

Crossing the floor:  Passing between the member addressing the House and the Chair which is considered breach of Parliamentary etiquette.

Point of Order:  A Member of Parliament may raise a point of order if he feels that the proceedings of' the House do not follow the normal rules. The presiding officer decides whether the point of order raised by the member should be allowed.

Calling Attention Motion:  With the prior permission of the Speaker, any member of the Parliament may call the attention of a Minister to a matter of urgent public importance. The Minister may make a brief statement about the matter or he may ask for time to make a statement later.

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Filed Under: Indian Politics
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26 9284
Q:

Which of these is not a means of personal communication on the internet  ?

A) Instant messaging B) Chat
C) Electronic mail D) Instanotes
 
Answer & Explanation Answer: D) Instanotes

Explanation:
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