Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#3301 2014-12-05 02:47:58
- 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
#3302 2014-12-05 15:30:41
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solutions #2140 and #2141 are correct. Excellent!
#2142. 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
#3303 2014-12-05 22:24:13
- 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
#3304 2014-12-05 23:45:36
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2142 is correct. Neat job!
#2143. Find the Variance of the first 11 natural numbers.
#2144. If
, then find P(neither A nor 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
#3305 2014-12-06 02:19:53
- 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
#3306 2014-12-06 17:50:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
#2145. Find the Greatest Common Divisor of (x + 1)(x - 2)(x - 4), (x - 2)(x + 4) and (x - 2)²(x + 1).
#2146. Find the point of intersection of the straight lines y = 0 and x = -4.
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
#3307 2014-12-06 21:54:40
- 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
#3308 2014-12-06 23:22:36
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solutions #2145 and #2146 are correct. Neat work!
#2147. 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
#3309 2014-12-07 03:09:04
- 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
#3310 2014-12-07 15:23:40
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2147 is correct. Good work!
#2148. If the surface area of a sphere is
square centimeters, then find its radius.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
#3311 2014-12-07 22:06:07
- 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
#3312 2014-12-08 01:28:31
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2148 is correct. Excellent!
#2149. Find the values of 'a' and 'b' if the following polynomial is a perfect square.
.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
#3313 2014-12-08 23:49:19
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi,
#2150. Find the Greatest Common Divisor 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
#3314 2014-12-09 01:54:24
- 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
#3315 2014-12-09 14:39:26
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2150 is correct. Neat job!
#2151. The vertices of a triangle are (1,2), (h,-3) and (-4,k). Find the values of h and k if the centroid of the triangle be at the point (5,-1)
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
#3316 2014-12-09 23:56:21
- 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
#3317 2014-12-10 01:41:37
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2151 is correct. Brilliant!
#2152. If
then find P (neither A nor 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
#3318 2014-12-10 02:58:57
- 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
#3319 2014-12-11 00:09:06
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
#2153. If the radius of a sphere is 2 centimeters, then find the curved surface area of the sphere.
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
#3320 2014-12-11 03:59:18
- 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
#3321 2014-12-11 15:44:18
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2153 is correct. Well done!
#2154. Total surface area of a solid hemisphere is
square centimeters. Find the curved surface area of the solid hemisphere.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
#3322 2014-12-11 22:20:01
- 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
#3323 2014-12-12 00:17:31
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2154 is correct. Remarkable!
#2155. A box contains 4 Green, 5 Blue and 3 Red balls. A ball is drwan at random. Find the probability that the selected ball is Red in color.
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
#3324 2014-12-12 03:48:58
- 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
#3325 2014-12-13 00:45:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi bobbym,
The solution #2155 is correct. Neat job!
#2156. Which term of the Arithmetic Progression 5, 13, 21, ... is 181?
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