GRE Questions and Answers with Explanation

Q:

Which of the following is generally true about the stratosphere?

A) It is very dry	B) It is very moist
C) The dryness level varies with the season	D) The dryness level varies with the moon cycle

Answer & Explanation Answer: A) It is very dry

Explanation:

The stratosphere layer of the atmosphere is very dry.

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Filed Under: General Science
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2 2752

Q:

5 F on a H?

Answer

5 F on a H is a letter equation which indicates that 5 Fingers on a hand.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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3 2749

Q:

If 5x - 17 = -x + 7, then x = ?

A) 4	B) 5
C) 7	D) 9

Answer & Explanation Answer: A) 4

Explanation:

Given equation 5x-17 = -x+7

Add 1x to each side of the equation

5x-17+x = -x+7+x

6x=24

x=4

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Filed Under: Logarithms
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Q:

W of H the E?

Answer

The given letter equation tells that,

Wives of Henry the Eighth.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GRE , TOEFL
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1 2732

Q:

If 15 men 4 hours per day works for 14 days get Rs.35/- then how many men required if the work is 8 hours per day for 10 days they get 50/- ?

A) 12	B) 13
C) 14	D) 15

Answer & Explanation Answer: D) 15

Explanation:

We know $\frac{M 1 \times D 1 \times H 1}{W 1} = \frac{M 2 \times D 2 \times H 2}{W 2}$

=> $\frac{15 \times 4 \times 14}{35} = \frac{M \times 8 \times 10}{50}$

=> M = 15

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Filed Under: Logic
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5 2718

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 2717

Q:

In a race of 200 m, A can beat B by 31 m and C by 18 m. In a race of 350 m, C will beat B by ?

A) 25 m	B) 21 m
C) 22 m	D) 19 m

Answer & Explanation Answer: A) 25 m

Explanation:

A:B = 200 : 169
A:C = 200 : 182
$\frac{C}{B} = \frac{C}{A} \times \frac{A}{B}$

$\frac{182}{200} \times \frac{200}{169}$

=> 182:169

When C covers 182 m , B Covers 169 m
When C covers 350 m , B Covers $\frac{169}{182} \times 350$
=> 325 m

So C beats B by (350 - 325) = 25 m.

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Filed Under: Time and Distance
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6 2715

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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