GATE Questions

Q:

On sport’s day, if 12 children were made to stand in each column, 98 columns could be formed. After a certain music being played the plan was that the children have to stand in concentric circles such that the innermost circle will have one student, the next circle will have two students, the third circle will have 3 students and so on. How many circles will be formed in this manner ?

A) 44 B) 46
C) 48 D) 49
 
Answer & Explanation Answer: C) 48

Explanation:

No. of students will be 98 x 12 = 1176
let us consider n circles then 1 + 2 + 3 + ....+ n = 1176
n(n+1)/2 = 1176
n = 48 circles.

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Filed Under: Arithmetical Reasoning
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Q:

Lasya invested certain amount for two rates of simple interests at 5% p.a. and 4% p.a. What is the ratio of Lasya's investments if the interests from those investments are equal ?

A) 4 : 5 B) 5 : 4
C) 7 : 6 D) 6 : 7
 
Answer & Explanation Answer: A) 4 : 5

Explanation:

Let x be the investment of Lasya in 5% and y be in 4%

x(5)(n)/100 = y(4)(n)/100

=> x/y = 4/5

x : y = 4 : 5

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Filed Under: Simple Interest
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3 3513
Q:

In how many different ways can the letters of the word 'POVERTY' be arranged ?

A) 2520 B) 5040
C) 1260 D) None
 
Answer & Explanation Answer: B) 5040

Explanation:

The 7 letters word 'POVERTY' be arranged in 7P7 ways = 7! = 5040 ways.

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Filed Under: Permutations and Combinations
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Q:

Missing Letter Challenge

18739822_1315678848539216_348955014883925877_n1499155394.jpg image

A) N B) K
C) L D) P
 
Answer & Explanation Answer: A) N

Explanation:
The alphabetical value of the letters in the left hand column follows through the sequence of Prime Numbers, with the letters in the right hand column representing the corresponding reverse alphabetical values. So,
 
M = Reverse of M = N.
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Filed Under: Missing letters puzzles
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Q:

Choose the synonym of 'Hypothesis' from the following options ?

A) Theory B) Fascination
C) Complexity D) Falling
 
Answer & Explanation Answer: A) Theory

Explanation:

'Hypothesis' is a word that gives a brief explanation of the concepts based on the limited evidence. The word 'theory' is closest in meaning to it.

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Filed Under: Analogy
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Q:

A person who is always dissatisfied

A) malcontent B) surrogate
C) heresy D) felon
 
Answer & Explanation Answer: A) malcontent

Explanation:

The one word substitute for "a person who is always dissatisfied" is malcontent.

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Filed Under: English
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1 3496
Q:

Which process allows water to enter the atmosphere?

A) Transpiration B) Respiration
C) Condensation D) Evaporation
 
Answer & Explanation Answer: D) Evaporation

Explanation:

Evaporation is the process that allows water to enter into the atmosphere.

Sunlight turns liquid water into water vapor which then rises higher into the atmosphere and forms into clouds.

 

Plants, too, help water get into the atmosphere through a process called transpiration.

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Filed Under: Physics
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Q:

Main memory works in conjunction with

A) CPU B) Intel
C) RAM D) Special function cards
 
Answer & Explanation Answer: A) CPU

Explanation:

Main memory works in conjunction with CPU.

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Filed Under: Computer
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