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#2101 2012-08-20 16:49:10
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2102 2012-08-21 01:07:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym and Denominator,
Good work, bobbym!
#1562. The sides of a triangle are in the ratio 1/2 : 1/3 : 1/4 and its perimeter is 104 centimeter. What is the length of the longest side?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2103 2012-08-21 01:11:13
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2104 2012-08-21 01:12:24
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
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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#2105 2012-08-21 07:19:30
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2106 2012-08-21 23:53:31
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym, anonimnystefy, and Denominator,
The solution #1562 is correct. Neat job!
#1563. If 10% of x = 20% of y, then x : y is equal to _________________
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2107 2012-08-21 23:56:20
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2108 2012-08-22 07:25:59
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2109 2012-08-22 22:53:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym and Denominator,
The
Correct, bobbym! Well done!
#1564. If 0.4 of a number is equal to 0.06 of another number, the ratio of the numbers is _____________
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2110 2012-08-22 22:59:56
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2111 2012-08-24 00:06:10
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym,
The solution #1564 is correct. Neat job!
#1565. Gold is 19 times as heavy as water and copper is 9 times as heavy was water. In what ratio should these be mixed to get an alloy 15 times as heavy as water?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2112 2012-08-24 00:25:12
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2113 2012-08-24 23:43:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym,
The solution #1565 is correct. Smart work!
#1566. Find the mean proportional between 0.08 and 0.18.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2114 2012-08-24 23:46:46
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2115 2012-08-25 08:01:56
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2116 2012-08-26 00:29:48
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym and Denominator,
The solution #1566 is correct. Neat job!
#1567. A shopkeeper sells one transistor for $840 at a gain of 20% and another for $960 at a loss of 4%. Find the total gain or loss percent.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2117 2012-08-26 06:16:46
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2118 2012-08-26 19:51:19
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2119 2012-08-27 01:22:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym and Denominator,
#1568. If loss is 1/3 of Selling Price, find the loss percentage.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2120 2012-08-27 04:35:02
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2121 2012-08-27 07:12:46
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2122 2012-08-28 00:13:44
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym and Denominator,
#1569. The percentage profit earned by selling an article for $1920 is equal to the percentage loss incurred by selling the same article for $1280. At what price should the article be sold to make 25% profit?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#2123 2012-08-28 00:28:34
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
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.
Always satisfy the Prime Directive of getting the right answer above all else.
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#2124 2012-08-28 17:42:31
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello Ganesh
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#2125 2012-08-29 00:34:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym and Denominator,
The solution #1569 is perfect. Marvelous!
#1570. The difference between a number and its two-fifth is 510. What is 10% of that number?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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