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#3126 2014-10-20 01:03:12

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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#3127 2014-10-20 10:43:32

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2050 is correct. Neat job!

#2051. Find the total surface area of a solid hemisphere of radius 2 centimeters.


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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#3128 2014-10-20 22:20:41

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

#3129 2014-10-21 00:42:40

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2051 is correct. Neat work!

#2052. If the volume of a sphere is

cubic 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

#3130 2014-10-21 02:01:55

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

#3131 2014-10-21 08:35:41

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2052 is correct. Good work!

#2053. The surface areas of two spheres are in the ratio 9:25. Find the ratio of their volumes.


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

#3132 2014-10-21 12:18:09

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

#3133 2014-10-22 00:46:11

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2053 is perfect. Brilliant!

#2054. If the surface area of a sphere is 100 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

#3134 2014-10-22 02:06:02

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

#3135 2014-10-22 15:05:04

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2054 is correct. Marvelous!

#2055. If the surface area of a sphere is

square centimeters, then find the volume 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

#3136 2014-10-22 17:17:57

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

#3137 2014-10-23 00:09:55

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2055 is correct. Excellent!

#2056. If the total surface area of a of a hemisphere is

square centimeters, then what is the curved 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

#3138 2014-10-23 00:23:08

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

#3139 2014-10-23 15:27:42

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2056 is correct. Neat job!

#2057. If the radius of a sphere is half of the radius of another sphere, then find ratio of their respective volume.


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

#3140 2014-10-23 19:34:46

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

#3141 2014-10-24 00:24:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2057 is correct. Well done!

#2058. Curved surface area of a solid sphere is 24 square centimeters. If the sphere is divided into two hemispheres, then find the total surface areas of one of the hemispheres.

.


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

#3142 2014-10-24 09:33:56

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi,

#2059. A solid right circular cylinder has base circumference 132 centimeters and height 10 centimeters. Find its 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

#3143 2014-10-24 10:37:16

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

#3144 2014-10-25 00:21:58

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2059 is correct. Marvelous!

#2060. The total surface area of a solid right circular cylinder is

square centimeters. If the height is 13 centimeters, find the 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

#3145 2014-10-25 03:40:27

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

#3146 2014-10-25 05:59:44

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

the solution #2060 is correct. Remarkable!

#2061. The radius of a circular well is 5 meters. Find the cost of cementing the surface to the depth of 14 meters at the rate of $2 per square meter.

.


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

#3147 2014-10-26 01:12:44

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi hobbym,

The solution :-

#2062. The total surface area of a right circular cone is 770 square centimeters. If the slant height of the cone is 4 times the radius of its base, then find the diameter of the base.

.


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

#3148 2014-10-26 02:43:29

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

#3149 2014-10-26 09:33:06

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: Oral puzzles

Hi bobbym,

The solution #2062 is correct. Excellent!

#2063. The bucket is in the form of a frustom of a cone. The radii of the circular ends of the bucket of height 24 centimeters are 12 centimeters and 4 centimeters. Find its volume.


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

#3150 2014-10-26 19:08:55

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

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