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Q:

A heap of coconuts is divided into groups of 2, 3 and 5 and each time one coconut is left over. The least number of Coconuts in the heap is  ?

A) 63 B) 31
C) 16 D) 27
 
Answer & Explanation Answer: B) 31

Explanation:

To get the least number of coconuts :
LCM = 30 => 30 + 1 = 31

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Filed Under: HCF and LCM
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33 10486
Q:

Which of the following has the highest frequency?

A) Cosmic rays B) X-rays
C) Radio waves D) Microwaves
 
Answer & Explanation Answer: A) Cosmic rays

Explanation:
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Filed Under: Physics
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30 10484
Q:

Which of the following is a scalar quantity

A) electric current B) electric field
C) Acceleration D) linear momentum
 
Answer & Explanation Answer: A) electric current

Explanation:

A Scalar quantity is a quantity that has only magnitude but no direction as like vector. 

Here in the given options, electric current is the only one which is scalar.

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Filed Under: Physics
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21 10483
Q:

Rovers Cup is associated with

A) Tennis B) Football
C) Cricket D) Hockey
 
Answer & Explanation Answer: B) Football

Explanation:

Rovers Cup is associated with the sport football in India.

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Filed Under: Sports
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4 10481
Q:

The circumferences of two circles are 264 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles  ?

A) 2413 sq.m B) 1234 sq.m
C) 4312 sq.m D) 2143 sq.m
 
Answer & Explanation Answer: C) 4312 sq.m

Explanation:

Let the radii of the smaller and the larger circles be 's' m and 'l' m respectively.  

 2πs = 264 and 2πl = 352  

 

 s = 2642π and l = 3522π   

Difference between the areas =πl2-πs2   

  = π1762π2-1322π2 

  = 1762π-1322π  

  = (176 - 132)(176 + 132) / π  

  = (44 x 308) / (22/7) = 4312 sq.m

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Filed Under: Volume and Surface Area
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18 10479
Q:

The first synthetic fibre made by man was ____ ?

A) Rayon B) Terycott
C) Polyester D) Nylon
 
Answer & Explanation Answer: D) Nylon

Explanation:
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Filed Under: General Science
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38 10477
Q:

Mica is available abundantly in

A) Andhra Pradesh, Jharkand, Bihar B) Bihar, Gujarat, Telangana
C) Andhra Pradesh, Karnataka, Jharkand D) Telangana, Andhra Pradesh, Bihar
 
Answer & Explanation Answer: A) Andhra Pradesh, Jharkand, Bihar

Explanation:

According to 2005 - 2006 census - Jharkand

According to 2011 - 2012 census - Andhra Pradesh

 

are the highest producers of Mica in India.

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Filed Under: Indian Geography
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33 10475
Q:

Which 'Water Body' separates Andaman and Nicobar Islands ?

A) Eleventh Degree Channel B) Andaman Sea
C) Bay of Bengal D) Ten Degree Channel
 
Answer & Explanation Answer: D) Ten Degree Channel

Explanation:
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Filed Under: Indian Geography
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17 10473