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Q:

How many times in a day, are the hands of a clock in straight line but opposite in direction?

A) 20 B) 22
C) 24 D) 48
 
Answer & Explanation Answer: B) 22

Explanation:

The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).

So, in a day, the hands point in the opposite directions 22 times.

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Filed Under: Clock puzzles

Q:

A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

A) 145 B) 150
C) 155 D) 160
 
Answer & Explanation Answer: C) 155

Explanation:

Angle traced by hour hand in 12 hrs = 360º.

 

Angle traced by hour hand in 5 hrs 10 min.  i.e., 31/6 hrs = 36012*316°= 155º

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Filed Under: Clock puzzles

Q:

How many minutes is it until six o’clock if fifty minutes ago it was four times as many minutes past three o’clock?

Answer Twenty-six minutes.
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Subject: Clock puzzles

Q:

Who organized 'Red Army'

Answer

 Trotsky


 

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Subject: World History

Q:

Whose period was known as the Golden Age of Rome?

Answer

 Augustus Caesar

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Subject: World History

Q:

This statesman,politican,scholar,inventor,and one of early presidents of USA invented the swivel chair,the spherical sundial,the moldboard plow,and the cipher wheel.

A) George Washington B) Alexander Hamilton
C) John Adams D) Thomas Jefferson
 
Answer & Explanation Answer: D) Thomas Jefferson

Explanation:

 Thomas Jefferson (April 13, 1743 – July 4, 1826) was the third President of the United States (1801-1809) and the principal author of the Declaration of Independence (1776).

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Filed Under: Inventions

Q:

Who is the english physicist responsible for the "Big Bang Theory"?

A) Albert Einstein B) Michael Skube
C) George Gamow D) Roger Penrose
 
Answer & Explanation Answer: C) George Gamow

Explanation:

George Gamow. Gamow, who died in 1968, was a physicist, who published “Thirty Years that Shook Physics”.

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Filed Under: Inventions

Q:

In the 1700s,who would pay the postage fee for letters before the stamp was invented?

A) The sender B) There was no fee
C) The receiver of the letter D) The post office
 
Answer & Explanation Answer: C) The receiver of the letter

Explanation:

Later in 1840, Rowland Hill invented the stamp, which was paid for by the sender, not the receiver.

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Filed Under: Inventions