Puzzles contest - 19 with answers

[HELP]

1. Do you know the surface area of the globe, counting all continents and oceans?

2. A bottle and its cork together cost Rs. 1.10, and the bottle costs Re 1 more than its cork. What is the price of the bottle?


3. What is a 'Cipher'?

4. The red corpuscles in the human body are said to ave a thickness of .00008 inch. Approximately howhigh would all the corpuscles in .an average adult'sbody be if they could be piled on top of one another
without compression?


5.Book Worm's RouteThere are three volumes of the same book each three centimetres thick. They are kept in shelf side by ide in order. Volume I, II and III. If a book worm starts utside the front cover of volume I and eats its way hrough to the outside of the back cover of volume III, ravelling in a straight line, how far does it travel?








Answers


1. About 500 million square kilometres.


2. No, the answer is not Re.11 -. If the cost of the bottle were Re.1/- and that of the cork lOP then the bottle would cost only 90P morethan the cork. Considering it more carefulIy we come out with the correct answer: 105 PQise.


3. 'Cipher' means Zero. The word 'Cipher' comes from the Arabic Sifr. Our word 'Zero' is derived from this word.


4.About 110,000,000 feet.


5 Three Centimetres: The book worm only has to go from the front cover of Volume I to the outside of the book cover of Volume III, in other words he only has to travel through Volume II, which is 3 Centimetres.


Edited by: HELP

[faraz]

1.No, there is no definite surface area of earth!


2.Re.1


3.Cipher is the code or symbols usedas a secretive way of communicating confidential matter to others.


4.no idea


5.It travels 3 volumes of the book's width.

[meera]

3.Encrypting the original message into some other format for increasing the confidentialityEdited by: meera

[meera]

2. A bottle and its cork together cost Rs. 1.10, and the bottle costs Re 1 more than its cork. What is the price of the bottle?
Re 1.5

[rathour]

2. A bottle and its cork together cost Rs. 1.10, and the bottle costs Re 1 more than its cork. What is the price of the bottle?

ans:-1.5

[rathour]

1. Do you know the surface area of the globe, counting all continents and oceans?
ans:-not sure

[rathour]

What is a 'Cipher'?
its a code that is used in security purpose

[BINNY]

1. Do you know the surface area of the globe, counting all continents and oceans?


Earth has a surface area of 196,940,400 square miles, slightly less than
a perfect ball with a diameter of 7913.5 miles (which is the mean
diameter of the Earth - see "Prove it" under 10³).

The surface area of the seven continents and all the islands of the
world is about 57 million miles, while the total area of the six
habitable continents (Antarctica excluded) is around 52 million square
miles. Including Antarctica , over one fifth of the globe's land mass
is under water (oceans, lakes, rivers, etc.) or ice. This leaves about
45 million square miles of exposed land. The human population on earth has crossed six billion. If we
distribute all the exposed land evenly among all mankind, 133 people
would have to share one square mile. What that means is that every
single person on Earth, man woman and child would have close to five
acres of land for his or her use. More precisely, each person would get
209,000 square feet of land, or a square plot of land 457 feet on each
side. Not all this land can be used beneficially however. A
significant portion of the Earth's exposed land is unhabitable or
cannot be used for any agricultural purpose. Large portions lie in the
far north. Large portions are extremely arid. Large portions are very
mountainous. In sum, only about one fourth of all the land on earth, or
somewhat more than 12 million square miles, is arable. Today, over half of the arable land in the world is in fact
not under cultivation. Bringing the unused land into service in many
cases would require huge investments of money and effort, and would do
considerable damage to the environment. For example, only about 28% of
the arable land on the African continent is used for growing crops.
Immense tracts of forests or jungles would have to be cleared to bring
the rest of the arable land on that continent to productive use. Thus, only about one eighth of each imaginary plot of land
distributed to each person is land which is under cultivation. In
effect, each person has a piece of land about 26,000 square feet (a
square 161 feet on each side or just a bit more than ½ an acre) at his
or her disposal on which to grow all that he or she needs.

[BINNY]

2. A bottle and its cork together cost Rs. 1.10, and the bottle costs Re 1 more than its cork. What is the price of the bottle?

Ans : 1.05 1 rupee 5 paise

Lets say cork is 5 paise , ( bottle costs Re 1 more than its cork )

Bottle cost is ( cork + 1 Rupee ) 5 paise + 1 rupee == 1.05 paise

[raghu]

Hi Binny,

I will give you one more simple solutio for 2 nd question:

Let's take bottle cost as b and cork cost as c, then

b+c=110 paise
and given that b=c+(100 paise)
so c+100+c=110
c= 5 paise
then b= 100+5=105 paise=> 1.05 rs

[raghu]

3. Cipher:
a message written in a secret code.

Find some more info at the following link:

http://java.sun.com/j2se/1.4.2/docs/.../crypto/Cipher. html

[BINNY]

3. What is a 'Cipher'?


Ans : A cryptographic system in which units of plain text of regular length,
usually letters, are arbitrarily transposed or substituted according to
a predetermined code

[BINNY]

4. The
red corpuscles in the human body are said to ave a thickness of .00008
inch. Approximately howhigh would all the corpuscles in .an average
adult'sbody be if they could be piled on top of one another
without compression?
Ans : The number of red corpuscles in the blood is enormous; between
4,000,000 and 5,000,000 are contained in a cubic millimetre.

Can anybody say how can I calculate the height ?

[BINNY]

5.Book Worm's
RouteThere are three volumes of the same book each three centimetres
thick. They are kept in shelf side by ide in order. Volume I, II and
III. If a book worm starts utside the front cover of volume I and eats
its way hrough to the outside of the back cover of volume III,
ravelling in a straight line, how far does it travel?

Ans : 9 cms