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#5201 2016-11-02 16:44:22
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3629 is correct. Excellent, bobbym and Monox D. I-Fly!
#3630. The ratio of the outer and inner circumference of a circular path is 23:22. If the path is 5 meters wide, then find the diameter of the inner circle.
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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#5202 2016-11-02 18:28:28
- 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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#5203 2016-11-03 17:18:33
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3630 is correct. Neat work, bobbym!
#3631. A wire is bent in the form of a circle has a radius 16 cm. What will be the area(in square centimeters) of a square which is formed out of the full length of such 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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#5204 2016-11-03 23:36:21
- 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.
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#5205 2016-11-04 18:30:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3631 is correct. Good work, bobbym!
#3632. If the perimeter and the area of a circle are numerically equal, then the radius of the circle is
(a) 2 units
(c) 4 units
(d) 7 units.
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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#5206 2016-11-04 19:28:31
- 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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#5207 2016-11-05 19:35:10
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3632 is correct. Good work, bobbym!
#3633. The perimeter (in cm) of a square circumscribing a circle of radius 'a' cm is _________
(a) 8a cm
(b) 4a cm
(c) 2a cm
(d) 16a 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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#5208 2016-11-05 23:29:29
- 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.
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#5209 2016-11-06 01:09:20
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3633 is correct. Good work, bobbym!
#3634. What is the ratio of the areas of a circle and an equilateral triangle whose diameter and a side are respectively equal?
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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#5210 2016-11-06 06:17:36
- 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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#5211 2016-11-07 00:45:20
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3634 is correct. Brilliant, bobbym!
#3635. Find the area of the segment of a circle if the angle of the corresponding sector is 120 degrees and the radius of the circle is 21 cm. (Use pi = 22/7)
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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#5212 2016-11-07 05:50:01
- 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
#5213 2016-11-07 21:13:25
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3635 is correct. Excellent, bobbym!
#3636. The area of a sector of a circle of radius 5 cm, formed by an arc of length 3.5 cm, is ______________.
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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#5214 2016-11-08 03:36:31
- 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
#5215 2016-11-08 21:29:35
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3636 is correct. Neat work, bobbym!
#3637. The measure of arc of a sector is 60 degrees and the radius is 7 cm. Find the difference of areas of the major sector and minor sector.
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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#5216 2016-11-09 05:22:57
- 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
#5217 2016-11-09 19:41:43
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3637 is correct. Excellent, bobbym!
#3638. The measure of the minor arc of a circle is 1/5 of the measure of the corresponding major arc. If the radius of the circle is 10.5 cm, find the area of the sector corresponding to the major arc.
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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#5218 2016-11-09 20:21:13
- 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
#5219 2016-11-10 18:48:34
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
#3639. A box contains cards numbered 6 to 50. A card is drawn at random from the box. Calculate the probability that the card drawn has a number which 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.
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#5220 2016-11-11 04:24:43
- 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
#5221 2016-11-11 18:17:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3639 is correct. Neat work, bobbym!
#3640. Solve:
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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#5222 2016-11-11 20:18:12
- 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.
Offline
#5223 2016-11-11 23:41:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solutions in #3640 are correct. Excellent, bobbym!
#3641. How many terms of the Arithmetic Progression 3, 6, 9, 12, ... should be taken so that the sum is 165?
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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#5224 2016-11-12 03:36:02
- 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
#5225 2016-11-12 18:02:21
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,267
Re: Oral puzzles
Hi;
The solution #3641 is correct. Good work, bobbym!
#3642. Find the sum of all the natural numbers between 100 and 500 which are divisible by 8.
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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