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Q:

Sound becomes hazardous noise pollution at decibels?

A) above 120 db B) above 80 db
C) above 50 db D) above 30 db
 
Answer & Explanation Answer: A) above 120 db

Explanation:

Sound intensity is measured in decibels(db). Sound pollution above 120 db becomes more hazardous and have adverse affects on human life. 

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Filed Under: Physics
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Q:

26 january 1950 which day of the week?

A) Monday B) Wednesday
C) Thursday D) Tuesday
 
Answer & Explanation Answer: C) Thursday

Explanation:

We know that,

Odd days --> days more than complete weeks

Number of odd days in 400/800/1200/1600/2000 years are 0.

Hence, the number of odd days in first 1600 years are 0.

Number of odd days in 300 years = 1

Number of odd days in 49 years = (12 x 2 + 37 x 1) = 61 days = 5 odd days

Total number of odd days in 1949 years = 1 + 5 = 6 odd days

Now look at the year 1950

Jan 26 = 26 days = 3 weeks + 5 days = 5 odd days

Total number of odd days = 6 + 5 = 11 => 4 odd days

 

Odd days :-

0 = sunday ;

1 = monday ;

2 = tuesday ;

3 = wednesday ;

4 = thursday ;

5 = friday ;

6 = saturday

 

Therefore, Jan 26th 1950 was Thursday.

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Filed Under: Calendar
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Q:

The preamble to the constitution does not specify providing for

A) economic equity B) domestic tranquility
C) common defense D) justice
 
Answer & Explanation Answer: A) economic equity

Explanation:

The preamble to the constitution does not specify providing for economic equity.

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Filed Under: Indian Politics
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Q:

The delegate who created the compromise for the constitution was

A) Alexander Hamilton B) William Paterson
C) James Madison D) Roger Sherman
 
Answer & Explanation Answer: D) Roger Sherman

Explanation:

Roger Sherman, is the delegate who created the compromise for the U.S constitution.

the_delegate_who_created_the_compromise_for_the_constitution_was1537502237.jpg image

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Filed Under: Famous Personalities
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Q:

What happens the first time buck is beaten?

A) He swears that he'll someday have his revenge on Spitz. B) He learns that he can't get away with stealing another dog's food.
C) He learns he has to obey men, but decides never to surrender inside. D) He has his spirit as well as his body crushed.
 
Answer & Explanation Answer: C) He learns he has to obey men, but decides never to surrender inside.

Explanation:
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Filed Under: General Science
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Q:

Can you slove this Maths Puzzle?

maths_puzzle1537500715.jpg image

A) 12 B) 6
C) 3 D) 1
 
Answer & Explanation Answer: B) 6

Explanation:

In the given puzzle, the logic behind is

9 = 72 => 9 x 8 = 72

8 = 56 => 8 x 7 = 56

7 = 42 => 7 x 6 = 42

6 = 30 => 6 x 5 = 30

5 = 20 => 5 x 4 = 20

 

Similarly,

4 = 12 => 4 x 3 = 12

3 = 6 => 3 x 2 = 6

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Filed Under: Math Puzzles
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Q:

In how many ways the letters of the word 'CIRCUMSTANCES' can be arranged such that all vowels came at odd places and N always comes at end?

A) 1,51,200 ways. B) 5,04,020 ways
C) 72,000 ways D) None of the above
 
Answer & Explanation Answer: A) 1,51,200 ways.

Explanation:

In circumcstances word there are 3C's, 2S's, I, U,R, T, A, N, E

Total = 13 letters

But last letter must be N

Hence, available places = 12

In that odd places = 1, 3, 5, 7, 9, 11

Owvels = 4

This can be done in 6P4 ways 

Remaining 7 letters can be arranged in 7!/3! x 2! ways

 

Hence, total number of ways = 6P4 x 7!/3! x 2! = 360 x 5040/12 = 1,51,200 ways.

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Filed Under: Permutations and Combinations
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Q:

The oldest news agency in the world is

A) Associated Press B) Agence France-Presse
C) Reuters D) None of the above
 
Answer & Explanation Answer: A) Associated Press

Explanation:

Associated Press (AP) is world's oldest news agency followed by Reuters and Agence France - Presse.

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Filed Under: General Awareness
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