CAT Questions

Q:

The difference between the squares of two consecutive odd integers is always divisible by ?

A) 8 B) 2
C) 6 D) 4
 
Answer & Explanation Answer: A) 8

Explanation:

Let the two consecutive odd integers be (2x + 1) and (2x + 3)

Then,

(2x + 3)2 - (2x + 1)2

= (2x + 3 + 2x + 1) (2x + 3 - 2x - 1)

= (4x + 4)(2)
= 8 (x + 1), which is always divisible by 8

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Filed Under: Numbers
Exam Prep: CAT
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45 21530
Q:

USB is which type of storage device?

A) Tertiary B) Secondary
C) Primary D) Auxillary
 
Answer & Explanation Answer: B) Secondary

Explanation:

USB - Universal Serial Bus is a secondary type of storage device which is used in all computers, laptops, mobiles...

USB1533034422.jpg image

It is a plug-and-play portable storage device that uses flash memory and is lightweight enough to attach to a keychain.

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Filed Under: Computer
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58 21495
Q:

125 over 1000 in Simplest Form?

A) 2/9 B) 1/8
C) 3/8 D) 4/7
 
Answer & Explanation Answer: B) 1/8

Explanation:

125 over 1000 in Simplest Form means 1251000 in its simple fraction form.

 

Now, to get the simplest form of 125/1000, find the HCF or GCD of both numerator and denominator i.e, 125 and 1000.

 

HCF of 125, 1000 = 125

 

Then, divide both numerator and denominator by 125

i.e, 1251251000125 = 18

 

Hence, 18 is the simplest form of 125 over 1000.

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Filed Under: Decimal Fractions
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47 21492
Q:

In a row, Kumar is at 7th place from the left and Pawan is at 9th place from the right. When they interchange the positions Kumar becomes 11th from left. How many were seated in the row ?

A) 19 B) 20
C) 21 D) 27
 
Answer & Explanation Answer: A) 19

Explanation:

Initialy from left 7th = kumar
from right 9th = pawan
Interchange kumar = 11th from left, from right kumar = 9th;
11+8 = 19;
8 is 1,2,3,4,5,6,7(pawan),8,9,10,11(kumar),12,13,14,15,16,17,18,19;
simply count the 9th place from right we will get total as 19.

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35 21418
Q:

Find the Missing number in the given number series?

5, 9, 15, 23, ?, 45

A) 33 B) 29
C) 31 D) 35
 
Answer & Explanation Answer: A) 33

Explanation:

The given series follows a pattern that,

+4, +6, +8, +10, +12...

5

5 + 4 = 9

9 + 6 = 15

15 + 8 = 23

23 + 10 = 33

33 + 12 = 45

 

Hence, the missing number in the series is 33.

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Filed Under: Odd Man Out
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3 21410
Q:

1 4 27 Sequence ...

Find the next two numbers in the above sequnce?

A) 256 & 3125 B) 3125, 46656
C) 46656, 859587 D) None
 
Answer & Explanation Answer: A) 256 & 3125

Explanation:

The above given sequence follows a pattern that,

 

122 = 433 = 2744 = 25655 = 312566 = 46656and so on...

Therefore, the next two numbers in the given sequence is 256 & 3125.

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6 21386
Q:

Warm is to Hot as Not so Good is to

A) Average B) Fair
C) Not so bad D) Worse
 
Answer & Explanation Answer: D) Worse

Explanation:

Warm and hot are in the same meaning sense , so not so good is same as worse in meaning.

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Filed Under: Analogy
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23 21337
Q:

Find the next number in the given number series?

11, 5.5, 10, 6.5, 9, ?

A) 6.5 B) 7.5
C) 8.5 D) 10.5
 
Answer & Explanation Answer: B) 7.5

Explanation:

The given number series follows a pattern that

11

11 - 5.5 = 5.5

5.5 + 4.5 = 10

10 - 3.5 = 6.5

6.5 + 2.5 = 9

9 - 1.5 = 7.5

 

Hence, the next number in the given number series is 7.5.

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2 21319