GATE Questions

Q:

What is the common ratio of the following geometric sequence?

4, 2, 1, 0.5, 0.25, 0.125,...

A) 0.5 B) -1
C) 1.5 D) -0.5
 
Answer & Explanation Answer: A) 0.5

Explanation:

In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.

 

Herein the given sequence, 4, 2, 1, 0.5, 0.25, 0.125,...

Common Ratio r = 2/4 = 1/2 = 0.5/1 = 0.25/0.5 = 0.125/0.25 == 0.5.

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3 35520
Q:

What should be replaced in the place of '?' in the following series ?

JAK, KBL, LCM, MDN, ?

A) MEN B) NEM
C) NEO D) OEP
 
Answer & Explanation Answer: C) NEO

Explanation:

This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment.

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6 35397
Q:

Find the next number in the given number sequence

200, 200, 100, 300, 75, ?

A) 150 B) 175
C) 250 D) 375
 
Answer & Explanation Answer: D) 375

Explanation:

The given number series is 200, 200, 100, 300, 75, ?

It follows a pattern that,

200

200 x 1 = 200

200 / 2 = 100

100 x 3 = 300

300 / 4 = 75

75 x 5 = 375

 

Hence, the next number in the given number sequence is 375.

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12 35300
Q:

What profit percent is made by selling an article at a certain price, if by selling at 2/3rd of that price, there would be a loss of 20%   ?

A) 30 % B) 25 %
C) 15 % D) 20 %
 
Answer & Explanation Answer: D) 20 %

Explanation:

SP2 = 2/3 SP1
CP = 100
SP2 = 80
2/3 SP1 = 80

SP1 = 120
100 --- 20   => 20%

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Filed Under: Profit and Loss
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96 34854
Q:

Melt : Liquid :: Freeze : ?

A) Condense B) Solid
C) Ice D) Crystal
 
Answer & Explanation Answer: B) Solid

Explanation:

Here the relation in the given words is, First is the process of formation of the second.

That is, when anything melts, it forms liquid. Similarly, when anything freezes it forms solid.

 

Hence, Melt : Liquid :: Freeze : Solid.

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Filed Under: Analogy
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85 34732
Q:

Convent : Cloister :: Eyrie : ?

A) Show B) Open
C) Hide D) Nest
 
Answer & Explanation Answer: D) Nest

Explanation:

Here the first two words are synonyms. Similarly, Eyrie means a large nest. So, the synonym of Eyrie is nest.

 

Hence, Convent : Cloister :: Eyrie : Nest.

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Q:

Where is RAM located?

A) Mother Board B) Expansion Board
C) External Drive D) None
 
Answer & Explanation Answer: A) Mother Board

Explanation:

RAM is located in The central processing unit (CPU), also called a processor, is located inside the computer case on the motherboard. It is sometimes called the brain of the computer, and its job is to carry out commands.

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137 34508
Q:

Guess the next number in the given number series?

999, 990, 998, 991, 997, 992, ?

A) 996 B) 1000
C) 999 D) 1001
 
Answer & Explanation Answer: A) 996

Explanation:

The given number series 999, 990, 998, 991, 997, 992, ?

It follows a pattern that,

999

999 - 9 = 990

990 + 8 = 998

998 - 7 = 991

991 + 6 = 997

997 - 5 = 992

992 + 4 = 996

 

Hence, the next number in the given number series is 996.

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8 34415