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GRE Questions

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Q:

The wavelength of a wave is the distance between

A) Crest and Trough B) Crest and Crest
C) Trough and Trough D) Both B & C
 
Answer & Explanation Answer: D) Both B & C

Explanation:

Distance between two Consecutive Crests or two Consecutive Troughs is called Wavelength. But the distance between crest and adjacent trough is half the wavelength.

That is the distance between adjacent crest and trough is called Half the wavelength.

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Filed Under: Physics
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11 2728
Q:

One who believes in fate?

A) determinist B) predestinarianist
C) fatalist D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

A person that believes completely in fate is a fatalist, or sometimes predestinarianist or determinist.

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Filed Under: English
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2 2718
Q:

Statement: It is estimated that about twenty lakh people will visit the city during the ensuing festival.
Courses of action:
a. The civic authority should monitor the crowd and restrict entry of the people beyond a manageable number.
b. The local police authority should be put on high alert to maintain law and order during the festival.
c. All the hospitals in the city should be put on high alert in case of any eventuality.

A) Only a follows B) Both b & c follows
C) Only c follows D) Both a and b sufficient
 
Answer & Explanation Answer: B) Both b & c follows

Explanation:

Clearly, People cannot be deprived of enjoying the festival for lack of arrangements. Also, it becomes necessary to deploy police to regulate big crowds and avert any mishap in public gatherings. Further, it costs nothing but might prove useful to put hospitals on alert to be ready to provide quick medical aid to patients in case of any eventuality. So, both b and c follow.

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Filed Under: Statement and Courses of Action
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2 2715
Q:

I am a box that holds keys without locks, yet they can unlock your soul. What am I?

A) Keyboard B) Keypad
C) Piano D) Key holder
 
Answer & Explanation Answer: C) Piano

Explanation:
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Filed Under: Word Puzzles
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5 2712
Q:

Give me a word that means the opposite of dull?

A) Sharp B) Bright
C) Exciting D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Dull means not sharp, not shining, not bright, ...

 

Hence, the given words are all that means the opposite of dull.

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Filed Under: English
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4 2701
Q:

The sum of the present ages of a father and his son is 70 years. Five years ago, father's age was 5 times the age of the son, so now the son's age will be?

A) 12 B) 14
C) 15 D) 19
 
Answer & Explanation Answer: C) 15

Explanation:

                                                               Father           Son

 

5years ago the age of the father & son           5X                X

 

present the age of the father & son              5X+5             X+5

 

(present age of father) + (present age of son) = 70

 

       (5x+5)                 +        (x+5)              = 70

 

 Then you will get X = 10

 

Present age of the son (x+5) = 15

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Filed Under: Problems on Ages
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7 2689
Q:

The difference between two numbers is 3355. When the larger number is divided by the smaller one, the quotient is 6 and the remainder is 15. The smaller number and larger number respectively ?

A) 546, 3901 B) 415, 3770
C) 668, 4023 D) 404, 3759
 
Answer & Explanation Answer: C) 668, 4023

Explanation:

Let the smaller number be k.
Then, larger number = (3355 + k)
Therefore 3355 + k = (6k + 15)
‹=› 5k = 3340
‹=› k = 668.

Therefore, the smaller number k = 668 and now the larger number = 3355+668 = 4023.

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Filed Under: Numbers
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4 2689
Q:

The comparative form of adjectives compares

A) more than two things or people. B) the past to the present.
C) two things or people. D) at least a dozen different times.
 
Answer & Explanation Answer: C) two things or people.

Explanation:

A comparative compares a person or thing with another person or thing. A superlative compares a person or thing with the whole group of which that person or thing is a member

Comparative adjectives compare one person or thing with another and enable us to say whether a person or thing has more or less of a particular quality.

Example :: I’m more interested in music than studies, Arun is taller than Karthik.

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Filed Under: English
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4 2686