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#2751 2011-07-13 01:08:09
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solutions 3022 and 3023 are correct. Neat job!
#3024.
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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#2752 2011-07-13 01:17:57
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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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#2753 2011-07-13 17:49:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3024 is correct. Neat job!
#3025. The perimeters of five squares are 24 cm, 32 cm, 40 cm, 76 cm, and 80 cm respectively. What is the perimeter of another square equal in area to the sum of the areas of these squares?
#3026. Find the number of marble slabs of side 20 cm x 20 cm required to pave the floor of a square room of side 4 meters.
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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#2754 2011-07-13 18:20:00
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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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#2755 2011-07-13 22:52:31
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solutions 3025 and 3026 are perfect. Neat job!
#3027.
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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#2756 2011-07-13 22:57:46
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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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#2757 2011-07-14 16:42:55
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3027 is perfect. Neat job!
#3028. A cistern 6 m long and 4 m wide contains water up to a depth of 1 m 25 cm. Find the total area of the wet surface.
#3029. A boat having a length 3 m and breadth 2 m is floating on a lake. The boat sinks by 1 cm when a man gets on it. Find the mass of the man if the density of water is 1000 kg/cubic 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.
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#2758 2011-07-14 17:10:19
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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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#2759 2011-07-15 01:34:23
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3029 is correct. Good work!
Regarding 3028, the cistern is a cuboid with the dimensions 6 m x 4 m x 1.25 m.
#3030. Find the Greatest Common Divisor of 513, 1134, and 1215.
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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#2760 2011-07-15 01:52:58
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#2761 2011-07-15 17:30:15
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3030 is correct. Well done!
#3031. The area of the base of a rectangular tank is 6500 square centimeters. The volume of water contained in it is 2.6 cubic meters. Find the depth of water in the tank.
#3032. Given 1 cubic cm of marble weighs 25 grams, the weight of a marble block 28 cm in width and 5 cm thick is 112 kg. Find the length of the block.
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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#2762 2011-07-15 18:05:49
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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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#2763 2011-07-15 22:15:22
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3031 is correct. Neat job!
#3033. Half a cubic meter of gold sheet is beaten into a very thin layer to cover an area of 1 hectare. Find the thickness of the sheet in mm.
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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#2764 2011-07-15 23:27:42
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#2765 2011-07-15 23:59:42
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3033 is correct. Keep it up!
#3034. A hemispherical bowl of internal radius 9 cm contains a liquid. This liquid is to be filled into cylindrical shaped small bottles of diameter 3 cm and height 4 cm. How many bottles would be needed to empty the bowl?
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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#2766 2011-07-16 02:26:02
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#2767 2011-07-16 17:19:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution #3034 is correct. Brilliant work!
#3035. The length of an edge of a hollow cube open at one face is
meters. What is the length of the largest pole that it can accommodate?#3036. What is the volume of a cube (in cubic cm.) whose diagonal measures
cm?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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#2768 2011-07-16 22:09:03
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#2769 2011-07-17 00:40:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3036 is correct. Well done! (The unit in the solution is cubic centimeters).
#3037. The surface area of a cube is 600 square centimeters. Find the length of its diagonal.
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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#2770 2011-07-17 09:13:36
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#2771 2011-07-17 16:06:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3037 is correct. Good work!
#3038. If the numbers representing volume and surface area are equal, then what would the length of the edge of the cube in terms of the measurment be?
#3039. A rectangular box measures internally 1.6 m long, 1 m broad, and 60 cm deep. Find the number of cubical blocks each of edge 20 cm that can be packed inside the box.
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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#2772 2011-07-17 22:35:58
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#2773 2011-07-18 00:15:25
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solutions 3038 and 3039 are perfect. Excellent!
#3040. How many spherical bullets can be made out of a lead cylinder 15 cm high and with base radius 3 cm, each bullet being 5 mm in diameter?
#3041. What is the volume of the greatest sphere that can be cut off from a cylindrical log of wood of base radius 1 cm and height 5 cm?
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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#2774 2011-07-18 00:35:51
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
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
#2775 2011-07-18 17:59:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 50,628
Re: 10 second questions
Hi bobbym,
The solution 3041 is correct. Good work!
#3042. A cylindrical rod of iron whose height is eight times its radius is melted and cast into spherical balls each of half the radius of the cylinder. Find the number of spherical balls.
#3043. The diameter of a sphere is 8 cm. It is melted and drawn into a wire of diameter 3 mm. Find the length of the wire.
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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