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#1451 2011-10-24 00:14:57
- 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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#1452 2011-10-24 23:50:10
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution #1278 is correct. Good work!
#1279. What is the average of four consecutive prime numbers beginning with 29?
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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#1453 2011-10-25 00:06:52
- 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.
Offline
#1454 2011-10-27 00:04:48
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution #1279 is correct. Neat job!
#1280. The area of a sector with angle 36[sup]o[/sup] is 15.4 cm[sup]2[/sup]. What is its perimeter?
(Use
)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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#1455 2011-10-27 00:07:45
- 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.
Offline
#1456 2011-10-27 23:55:22
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution
#1281. If the side of an equilateral triangle is decreased by 20%, by what percent is its area decreased by?
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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#1457 2011-10-28 00:35:44
- 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.
Offline
#1458 2011-10-28 23:18:19
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution #1281 is perfect. Good work!
#1282. Find the least possible value of A for which 90 x A is a perfect cube.
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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#1459 2011-10-28 23:24:39
- 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.
Offline
#1460 2011-10-29 17:07:07
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution #1282 is correct. Well done!
#1283. The marked price of an article is 40% above the cost price. What is the discount that may be allowed to make a profit of 12%?
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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#1461 2011-10-29 22:20:55
- 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.
Offline
#1462 2011-10-31 02:41:56
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
#1284. What is the sum of the roots of the equation x[sup]2[/sup] - 6x + 7 = 0?
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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#1463 2011-10-31 03:00:58
- Arthur Bon Zavi
- Member
- Registered: 2011-10-30
- Posts: 121
Re: Oral puzzles
Hi bobbym,
#1284. What is the sum of the roots of the equation x[sup]2[/sup] - 6x + 7 = 0?
In the heart of the night, when it's dark in the lights; I heard the loudest voice - a gun shot on the floor.
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#1464 2011-10-31 06:49:48
- 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.
Offline
#1465 2011-10-31 19:29:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi Arthur Bon Zavi and bobbym,
The solution #1284 is correct. Well done!
#1285. What is the value of x if
?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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#1466 2011-10-31 19:58:26
- Arthur Bon Zavi
- Member
- Registered: 2011-10-30
- Posts: 121
Re: Oral puzzles
Hi Arthur Bon Zavi and bobbym,
The solution #1284 is correct. Well done!
#1285. What is the value of x if
?
In the heart of the night, when it's dark in the lights; I heard the loudest voice - a gun shot on the floor.
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#1467 2011-10-31 20:45:35
- 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.
Offline
#1468 2011-11-02 00:22:45
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi Arthur Bon Zavi and bobbym,
The solution #1285 is perfect. Well done!
#1286. What is the value of x if
?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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#1469 2011-11-02 00:27:37
- 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.
Offline
#1470 2011-11-02 22:16:41
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution #1286 is perfect. Neat job!
#1287. A 2 digit number has the unit digit 175% of the tens digit and the units digit one less than twice the tens digit. What is the 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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#1471 2011-11-02 22:35:03
- 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.
Offline
#1472 2011-11-04 00:24:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution #1287 is perfect. Good work!
#1288. How long does a train 120 meters long to cross a post, if its speed is 36 km/hour? (In seconds)
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.
Offline
#1473 2011-11-04 00:29:17
- 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.
Offline
#1474 2011-11-04 21:28:15
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,273
Re: Oral puzzles
Hi bobbym,
The solution #1288 is correct. Good work!
#1289. Find the value of
.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.
Offline
#1475 2011-11-04 22:28:25
- 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.
Offline