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#2001 2012-07-12 22:01:35

ganesh
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Re: Oral puzzles

Hi anonimnystefy and bobbym,

The solution #1524 is correct, bobbym! Neat job!



#1525. Find the average of the cubes of first 8 natural numbers.


Character is who you are when no one is looking.
 

#2002 2012-07-12 22:15:07

bobbym
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Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2003 2012-07-13 22:57:37

ganesh
Moderator

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Re: Oral puzzles

Hi bobbym,

The solution #1525 is correct. Well done!

#1526. The product of two numbers is 1452. The first number is 1/3 of the second number. Find the first number.


Character is who you are when no one is looking.
 

#2004 2012-07-13 23:01:03

anonimnystefy
Real Member

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Re: Oral puzzles

Hi ganesh


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#2005 2012-07-14 01:56:24

bobbym
Administrator

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Re: Oral puzzles

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2006 2012-07-14 22:25:36

ganesh
Moderator

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Re: Oral puzzles

Hi anonimnystefy and bobbym,

The solution #1526 is correct. Good work!

#1527. If the sum of two numbers is 22 and the sum of their squares is 404, find the product of the numbers.


Character is who you are when no one is looking.
 

#2007 2012-07-14 22:27:27

bobbym
Administrator

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Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2008 2012-07-14 22:28:57

anonimnystefy
Real Member

Offline

Re: Oral puzzles

Hi ganesh


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

#2009 2012-07-15 21:24:19

ganesh
Moderator

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Re: Oral puzzles

Hi bobbym and anonimnystefy,

The solution #1527 is correct. Brilliant!

#1528. The sum of three numbers is 264. If the first number be twice the second and third number be one-third of the first, what is the second number?


Character is who you are when no one is looking.
 

#2010 2012-07-15 21:26:16

bobbym
Administrator

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Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2011 2012-07-16 21:43:56

ganesh
Moderator

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Re: Oral puzzles

Hi bobbym,

The solution #1528 is perfect. Marvelous!

#1529. The sum of seven consecutive odd integers is 133. Find the least odd integer.


Character is who you are when no one is looking.
 

#2012 2012-07-16 22:17:58

bobbym
Administrator

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Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2013 2012-07-17 01:10:30

careless25
Real Member

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Re: Oral puzzles

 

#2014 2012-07-17 21:44:40

ganesh
Moderator

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Re: Oral puzzles

Hi bobbym and careless25,



Good work, careless25!

#1530. The sum of two numbers is 22. Five times one number is equal to 6 times the other. Find the bigger number of the two numbers.


Character is who you are when no one is looking.
 

#2015 2012-07-17 21:56:08

bobbym
Administrator

Offline

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2016 2012-07-18 22:06:18

ganesh
Moderator

Offline

Re: Oral puzzles

Hi bobbym,

The solution #1530 is correct. Good work!

#1531. The sum of two numbers is 40 and their difference is 4. Find the ratio of the numbers.


Character is who you are when no one is looking.
 

#2017 2012-07-18 22:14:11

bobbym
Administrator

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Re: Oral puzzles

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2018 2012-07-19 22:06:44

ganesh
Moderator

Offline

Re: Oral puzzles

Hi bobbym,

The solution #1531 is correct. Good work!

#1532. The difference between 90% of a number and 74% of the same number is 268. What is 56% of that number?


Character is who you are when no one is looking.
 

#2019 2012-07-19 23:06:53

bobbym
Administrator

Offline

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2020 2012-07-20 20:52:04

ganesh
Moderator

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Re: Oral puzzles

Hi bobbym,

The solution #1532 is perfect. Good work!

#1533. 5 out of 2250 parts of earth is sulfur. What is the percentage of sulfur in the earth?


Character is who you are when no one is looking.
 

#2021 2012-07-20 21:00:56

bobbym
Administrator

Offline

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2022 2012-07-21 21:06:47

ganesh
Moderator

Offline

Re: Oral puzzles

Hi bobbym,

The solution #1533 is correct. Well done!

#1534. If 16% of 40% of a number is 8, then what is the number?


Character is who you are when no one is looking.
 

#2023 2012-07-21 22:12:37

bobbym
Administrator

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Re: Oral puzzles

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#2024 2012-07-22 22:11:24

ganesh
Moderator

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Re: Oral puzzles

Hi bobbym,

The solution #1534 is correct. Good work!

#1535. In an examination, 36% of the students failed in Hindi, 54% failed in English, and 20% failed in both. What percent of the total students passed in both the subjects?


Character is who you are when no one is looking.
 

#2025 2012-07-23 00:43:30

anonimnystefy
Real Member

Offline

Re: Oral puzzles

Hi ganesh


The limit operator is just an excuse for doing something you know you can't.
“It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
 

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