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#201 2015-09-07 22:57:55
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
The solution M # 90 is correct! Marvelous!
M # 91. A car has two wipers which do not overlap. Each wiper has a blade of length 25 centimeters sweeping through an angle of 115 degrees. Find the total area cleaned at each sweep of the blades.
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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#202 2015-09-08 14:17:26
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#203 2015-09-08 17:31:42
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
The solution M # 91 is correct! Magnificent!
M # 92. To warn ships for underwater rocks, a lighthouse spreads a red colored light over a sector of angle 80 degrees to a distance of 16.5 kilometers. Find the area of the sea over which the ships are warned.
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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#204 2015-09-09 17:00:47
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#205 2015-09-09 17:41:14
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
The solution M # 92 is correct! Marvelous!
M # 93. A mason constructs as wall of dimensions 270 cm x 300 cm x 350 cm with the bricks each of size 22.5 cm x 11.25 cm x 8.75 cm and it is assumed that 1/8 space is covered by the mortar. Find the number of bricks used to construct the wall.
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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#206 2015-09-10 20:46:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#207 2015-09-10 21:17:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
M # 94. Find the number of bricks, each measuring 24 cm x 12 cm x 8 cm, required to construct a wall 24 meter long, 8 meter high and 60 centimeter thick, if 10% of the wall is filled with mortar?
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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#208 2015-09-10 22:42:02
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#209 2015-09-11 00:56:22
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
The solution M # 94 is correct! Excellent!
M # 95. A conical vessel, whose internal radius is 12 cm and height 50 cm, is full of liquid. The contents are emptied into a cylindrical vessel with internal radius 10 cm. Find the height to which the liquid rises in the cylindrical vessel.
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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#210 2015-09-11 21:15:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#211 2015-09-11 21:54:33
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
The solution M # 95 is correct! Neat work!
M # 96. A heap of paddy is in the form of a cone whose diameter is 4.2 meters and height 2.8 meters. If the heap is to be covered exactly by a canvas to protect it from rain,, then find the area of the canvas needed.
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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#212 2015-09-14 22:05:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#213 2015-09-15 11:27:17
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
The solution M # 96 is correct! Good work!
M # 97. A sector is cut from a circle of radius 21 centimeters. The angle of the sector is 150 degrees. Fiind the length of its arc and 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.
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#214 2015-09-15 21:43:52
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#215 2015-09-15 22:40:27
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym,
The solution M # 97 is perfect (both parts)! Excellent!
M # 98. The minute hand of a clock is 10 centimeters. Find the area of the face of the clock decsribed by the minute hand between 9.00 AM and 9.35 AM.
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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#216 2015-09-15 23:58:56
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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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#217 2015-09-16 00:22:19
#218 2015-09-16 08:15:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi bobbym and zetafunc,
The solution M # 98 is correct! Excellent, bobbym and zetafunc!
M # 99. A drain cover is made from a square metal plate of side 40 centimeters having 441 holes of diameter 1 centimeter each drilled in t. Find the area of te remaining square plate.
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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#219 2015-09-16 11:58:54
#220 2015-09-16 15:04:51
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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
#221 2015-09-16 16:00:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi zetafunc and bobbym,
The solution M # 99 is correct! Good work, zetafunc and bobbym!
M # 100. A solid sphere of radius 3 centimeters is melted and then cast into small spherical balls each of diameter 0.6 centimeter. Find the number of balls thus obtained.
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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#222 2015-09-16 21:37:55
#223 2015-09-17 00:22:59
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Mensuration
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
#224 2015-09-17 15:02:27
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Mensuration
Hi zetafunc and bobbym,
Excellent, zetafunc!
M # 101. Two cubes each of of volume 64 cubic centimeters are joined end to end. Find the surface area and volume of the resulting cuboid.
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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