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#2576 2014-05-15 21:30:24

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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#2577 2014-05-16 15:21:38

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution #1779 is correct.Good work!

#1780. Find the value of k if 1³ + 2³ + 3³ + 4³ + ........ + k³ = 6084.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2578 2014-05-16 15:41:16

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2579 2014-05-17 21:43:23

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution #1780 is correct. Brilliant!

#1781. Find the next term of the sequence


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2580 2014-05-17 21:55:06

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2581 2014-05-17 23:06:34

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

Re: Oral puzzles

Hi ganesh


“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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#2582 2014-05-18 01:27:55

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym and anonimnystefy,

The solution #1781 is correct, bobbym and anonimnystefy! Good work!

#1782. If

are in Arithmetic Progression, then what is the value of
?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2583 2014-05-18 01:39:41

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2584 2014-05-18 18:27:14

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution #1782 is correct. Good work!

#1783. If k + 2, 4k - 6, 3k - 2 are the three consecutive terms of n Arithmetic Progression, then what is the value of k?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2585 2014-05-18 18:53:46

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2586 2014-05-19 02:19:06

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,018

Re: Oral puzzles

Hi ganesh


“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

Offline

#2587 2014-05-19 02:30:22

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym and anonimnystefy,

The solution #1783 is correct. Neat job, bobbym and anonimnystefy!

#1784. If the product of the first four consecutive terms of a Geometric Progression is 256 and if the common ratio is 4 and the first term is positive, then find its third term.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2588 2014-05-19 02:36:09

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2589 2014-05-19 17:54:21

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution #1784 is correct. Good work!

#1785. A geometric series consists of four terms and has a positive common ratio. The sum of the first two terms is 9 and the sum of the last two terms is 36. Find the series.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2590 2014-05-19 20:19:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2591 2014-05-20 02:33:41

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution #1785 is correct. Good work!

#1786 If

, x and y being positive whole numbers, then what are the values of x and y respectively?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#2592 2014-05-20 02:39:03

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2593 2014-05-20 20:47:41

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solutions #1786 (two solutions) are perfect. Neat job!

#1787. What is the smallest number by which 3600 be divided to make it a perfect cube?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#2594 2014-05-20 21:03:28

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2595 2014-05-21 02:44:44

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution #1787 is correct. Neat work!

#1788. Find the value of


.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#2596 2014-05-21 02:58:16

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2597 2014-05-22 00:55:16

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution#1788 is perfect. Remarkable!

#1789.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#2598 2014-05-22 01:51:42

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

#2599 2014-05-23 00:41:23

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,730

Re: Oral puzzles

Hi bobbym,

The solution #1789 is correct. Fantastic performance!

#1790. Find the value of

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#2600 2014-05-23 00:45:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 106,408

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

Offline

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