Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#3376 2014-12-30 21:52:13
- 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.
Offline
#3377 2014-12-31 14:41:49
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2174 is correct. Marvelous!
#2175. 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
#3378 2014-12-31 21:44:32
- 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
#3379 2015-01-01 16:42:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2175 is correct. Marvelous!
#2176. Find the area of the triangle formed by the points (0,0), (3,0), and (0,2).
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
#3380 2015-01-01 19:05:35
- 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
#3381 2015-01-02 17:17:17
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2176 is correct. Excellent!
#2177. The number of bacteria in a certain culture doubles every hour. If there were 30 bacteria present in the culture initially, how many bacteria will be persent at the end of 14th hour?
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
#3382 2015-01-02 19:59:21
- 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
#3383 2015-01-03 01:15:18
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2177 is correct. Marvelous!
#2178. 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
#3384 2015-01-03 13:21:17
- 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
#3385 2015-01-03 15:03:43
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2178 is correct. Excellent!
#2179. If the curved surface area of a solid hemisphere is 2772 square centimeters, find the total surface area.
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
#3386 2015-01-03 18:53:47
- 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
#3387 2015-01-04 00:38:34
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2179 is correct. Neat job!
#2180. Find the equation of the straight line which passes through the point (3,4) and have intercepts on the axes such that their sun is 14. (Find both solutions).
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
#3388 2015-01-06 00:54:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi,
#2181. Let U = {4, 8, 12, 16, 20, 24, 28}, A = {8, 16, 24}, B = {4, 16, 20, 28}, find {A U B}'.
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
#3389 2015-01-23 23:52:40
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi,
.
#2182. 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 3rd term.
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
#3390 2015-01-25 17:26:08
- 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
#3391 2015-01-25 18:00:43
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2182 is correct. Neat job!
#2183. Evaluate:
.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
#3392 2015-01-26 05:03:40
- 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
#3393 2015-01-26 19:42:06
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #^2183 is correct. Marvelous!
#2184. If 1 + 2 + 3 + .... + n = k, 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
#3394 2015-01-26 22:52:46
- 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.
Offline
#3395 2015-01-27 16:39:22
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The problem #2184 modified. I regret the inconvenience.
#2184. If 1 + 2 + 3 + .... + n = k, find the value of
.#2185. Find the Range and Coefficient of Range of 43, 24, 38, 56, 22, 39, and 45.
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
#3396 2015-01-29 16:52:33
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi,
#2186. A bag contains 10 white, 5 black, 3 green, and 2 red balls. One ball is drawn at random. Find the probability that one ball drawn is white or black or green,
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
#3397 2015-01-30 00:34:09
- 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
#3398 2015-01-30 04:09:40
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
.
The sother solutions, #2185 and #2186 are correct. Splendid!
#2187. The vertices of Δ ABC are A(2,1), B(-2,3), and C(4,5). Find the equation of the median through the vertex A.
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
#3399 2015-01-30 04:27:17
- 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
#3400 2015-01-30 15:45:39
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Oral puzzles
Hi bobbym,
The solution #2187 is correct. Marvelous!
#2188. If A and B are two events such that
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