CAT Questions

Q:

In the series given below , how many 8's are there each of which is exactly divisible by its immediate preceeding as well as succeeding numbers ?
2 8 3 8 2 4 8 2 4 8 6 8 2 8 2 4 8 3 8 2 8 6

A) five B) four
C) two D) one
 
Answer & Explanation Answer: C) two

Explanation:

Clearly, we may mark such sets of 3 numbers, in which the middle number is 8 and each of the two numbers on both sides of it is a factor of 8, as shown below :


2 8 3 8 2 4 8 2 4 8 6 8 2 8 2 4 8 3 8 2 8 6

So, there are two such 8's. Hence the answer is C.

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14 9491
Q:

A group of eight bits is called

A) buzz B) nibble
C) byte D) word
 
Answer & Explanation Answer: C) byte

Explanation:

A group of eight bits is called as a byte and that of 4 bits is called as a nibble.

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Filed Under: Computer
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17 9483
Q:

A woman’s voice is shriller than a man’s voice due to

A) weak vocal chords B) lower frequency
C) higher frequency D) higher amplitude
 
Answer & Explanation Answer: C) higher frequency

Explanation:

As the frequency of sound is higher, women have shriller voices than men.

The shrillness or pitch of a sound is determined by its frequency. The higher the pitch shriller the voice. As the sounds produced by vocal cords of women are higher than men so women have shriller voices than men. Because their vocal cord is of smaller size. As their vocal cord is more stretched than men's.

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Filed Under: Physics
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7 9478
Q:

Calculate the number of bricks, each measuring 25 cm x 15 cm x 8 cm required to construct a wall of dimensions 10 m x 4 cm x 6 m when 10% of its volume is occupied by mortar  ?

A) 720 B) 600
C) 660 D) 6000
 
Answer & Explanation Answer: A) 720

Explanation:

Let the number of bricks be 'N'

10 x 4/100 x 6 x 90/100 = 25/100 x 15/100 x 8/100 x N

10 x 4 x 6 x 90 = 15 x 2 x N => N = 720.

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Filed Under: Area
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6 9475
Q:

What value will replace the question mark in the puzzle?


A) 64 B) 56
C) 46 D) 36
 
Answer & Explanation Answer: C) 46

Explanation:

The Answer is 46.

Logic ::

First number on the right hand side is the second number in the left side of equation ( and ) second number on the right side is the sum of two numbers on the left side of the equation.

 

Hence, 2 + 4 = 4(2+4) = 46.

 

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Filed Under: Math Puzzles
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19 9474
Q:

Foresight : Anticipation :: Insomnia : ?

A) Gems B) Sleeplessness
C) Iron D) Diamond
 
Answer & Explanation Answer: B) Sleeplessness

Explanation:

The words in each pair are synonyms. Here Foresight and Anticipation are synonyms to each other and Insomnia is a synonym to Sleeplessness.

 

Hence, Foresight : Anticipation :: Insomnia : Sleeplessness.

 

 

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Filed Under: Analogy
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9 9465
Q:

There is an empty reservoir whose capacity is 30 litres. There is an inlet pipe which fills at 5 L/min and there is an outlet pipe which empties at 4 L/min. Both the pipes function alternately for 1 minute. Assuming that the inlet pipe is the first one to function, how much time will it take for the reservoir to be filled up to its capacity?

A) 49.5 min B) 50 min
C) 51 min D) 52 min
 
Answer & Explanation Answer: C) 51 min

Explanation:

The work to be done = Capacity of reservoir  = 30 litres.

 1st Minute ---> inlet pipe opened ---> 5 lit filled

 2nd minute ---> inlet pipe closed; outlet pipe opened ---> 4 lit emptied

 

In 2 minutes (5 litres - 4 litres = 1lit) is filled into the reservoir.

It takes 2 minutes to fill 1lit ---> it takes 50 minutes to fill 25 litres into the reservoir.  

 

In the 51st minute inlet pipe is opened and the reservoir is filled.

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Filed Under: Pipes and Cistern
Exam Prep: CAT
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24 9464
Q:

The market was full of people ……….. attractive clothes of different styles.

A) showing B) watching
C) Having D) wearing
 
Answer & Explanation Answer: D) wearing

Explanation:

The market was full of people wearing attractive clothes of different styles.

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Filed Under: Analogy
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6 9457