GRE Questions

Q:

The basic operations performed by a computer are

A) Logical operation B) Storage and relative
C) Arithmetic operation D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

The_basic_operations_performed_by_a_computer1537941097.png image

The basic operations performed by a computer are Arithmetic operation, Logical operation and Storage and relative.

 

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67 26436
Q:

At what time between 3 and 4 o’clock will the minute hand and the hour hand are on the same straight line but facing opposite directions ?

A) 3:15 2/8 B) 3:49
C) 3:49 1/11 D) 3:51
 
Answer & Explanation Answer: C) 3:49 1/11

Explanation:

On straight line means 180 degree angle.
180 = 11/2 min – 30 hrs
180 = 11/2 m – 30 × 3
180 = 11/2 m – 90
(180 + 90) 2 = 11 m
m = 540/11 = 49 1/11 minutes.

 

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Filed Under: Clocks
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30 26414
Q:

Lover of nature is called

A) Autophile B) Green panther
C) Dendrophile D) Petrichor
 
Answer & Explanation Answer: B) Green panther

Explanation:

Lover of nature is called nature lover or Green Panther.

nature_lover1533114089.jpg image

 

Autophile is a person who loves being alone.

 

Dendrophile is a person who loves trees and forests.

 

Petrichor is an earthy smell that follows a rainfall.

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22 26255
Q:

Solve the missing number puzzle?

number_puzzle31533710656.jpg image

Answer

Here in the above puzzle,


Consider the columns.


Column 1 = Row 1 + Row 2 = Row 3


That is,


44 + 12 = 56


Similarly,


48 + 30 = 78


Hence, 14 + 51 = 65.


 


Hence, the missing number in the given puzzle = 65.

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Q:

Should a total ban be put on traping wild animals?

Arguments:

1. Yes. Trappers are making a lot of money
2. No. Bans on hunting and trapping are not effective

A) Only 1 is true B) Only 2 is true
C) Either 1 or 2 is true D) Neither 1 or 2 is true
 
Answer & Explanation Answer: D) Neither 1 or 2 is true

Explanation:

Ban is necessary to protect our natural envoirnment .So none of the argument is strong enough

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Filed Under: Statement and Arguments
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38 26184
Q:

Without any stoppage, a person travels a certain distance at an average speed of 42 km/h, and with stoppages he covers the same distance at an average speed of 28 km/h. How many minutes per hour does he stop?

A) 15 minutes B) 20 minutes
C) 18 minutes D) 22 minutes
 
Answer & Explanation Answer: B) 20 minutes

Explanation:

Let the total distance to be covered is 84 kms.
Time taken to cover the distance without stoppage = 84/42 hrs = 2 hrs
Time taken to cover the distance with stoppage = 84/28 = 3 hrs.
Thus, he takes 60 minutes to cover the same distance with stoppage.
Therefore, in 1 hour he stops for 20 minutes.

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Q:

In a certain coding language, iF GO = 32 & SHE = 49 then SOME will be equal to ?

A) 56 B) 58
C) 62 D) 64
 
Answer & Explanation Answer: A) 56

Explanation:

If we count letters till the end of the alphabet including that letter in reverse order then
Here the values are nothing but the values corresponding to the alphabets when taken in a reverse order,i.e,A=26 ,B=25...,Z=1
G = 20 and O = 12 totaling 32
S = 8, H = 19 and E = 22 totaling 49

So
SOME = 8 + 12 + 14 + 22 = 56.

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102 25463
Q:

A does half as much work as Band C does half as much work as A and B together. If C alone can finish the work in 40 days, then together ,all will finish the work in  ?

A) 17 + 4/7 days B) 13 + 1/3 days
C) 15 + 3/2 days D) 16 days
 
Answer & Explanation Answer: B) 13 + 1/3 days

Explanation:

C alone can finish the work in 40 days.
As given C does half as much work as A and B together
=> (A + B) can do it in 20 days
(A + B)s 1 days wok = 1/20.
A's 1 days work : B's 1 days Work = 1/2 : 1 = 1:2(given)
A's 1 day’s work = (1/20) x (1/3) = (1/60) [Divide 1/20 in the raio 1:2]
B's 1 days work = (1/20) x (2/3) = 1/30
(A+B+C)'s 1 day's work = (1/60) + (1/30) + (1/40) = 9/120 = 3/40

All the three together will finish it in 40/3 = 13 and 1/3 days.

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Filed Under: Time and Work
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