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#526 2016-05-19 14:57:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#238 is correct. Neat work!
SP#239. Find the sum of all numbers between 250 and 1000 which are divisible by 3.
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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#527 2016-05-19 18:45:56
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#528 2016-05-20 00:07:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
SP#240. Find the sum of all odd integers between 2 and 100 divisible by 3.
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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#529 2016-05-20 04:57:32
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#530 2016-05-20 17:24:37
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
SP#241. How many terms of the Arithmetic Progression 9, 6, 3, 0, -3, ... will be needed to give the sum -216?
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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#531 2016-05-20 20:36:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#532 2016-05-21 00:51:26
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#241 is correct. Neat work, bobbym!
SP#242. How many terms of the Arithmetic Progression 9, 17, 25, ... must be taken to get a sum of 450?
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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#533 2016-05-21 16:23:03
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#534 2016-05-21 18:03:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#242 is correct. Well done, bobbym!
SP#243. Find the sum of integers between 200 and 300 that are divisible by 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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#535 2016-05-21 20:16:18
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#536 2016-05-21 23:14:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#243 is correct. Excellent, bobbym!
SP#244. Find the sum of all odd numbers between 10 and 200.
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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#537 2016-05-22 15:08:42
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#538 2016-05-22 17:11:38
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#244 is correct. Remarkable, bobbym!
SP#245. Find the sum of all natural numbers between 40 and 400 which are divisible by 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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#539 2016-05-22 20:59:17
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#540 2016-05-22 23:15:52
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#245 is correct. Excellent, bobbym!
SP#246. Find the sum of all two digit natural numbers which are divisible by 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.
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#541 2016-05-23 12:19:03
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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
#542 2016-05-23 16:28:22
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#246 is correct. Neat work, bobbym!
SP#247. Find the sum of all 3 digit numbers which are divisible by 11.
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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#543 2016-05-23 18:21:14
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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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#544 2016-05-24 19:53:01
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#247 is correct. Brilliant, bobbym!
SP#248. Find the sum of first 40 multiples of 6.
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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#545 2016-05-25 07:02:17
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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
#546 2016-05-25 19:15:00
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#248 is correct. Neat work, bobbym!
SP#249. If the 12th term of a Arithmetic Progression is -13 and the sum of its four terms is 24, what is the sum of its first 10 terms?
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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#547 2016-05-26 14:04:27
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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
#548 2016-05-26 18:48:06
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
The solution SP#249 is perfect. Excellent, bobbym!
SP#250. In an Arithmetic Progression, the first term is 25, nth the in -17 and the sun of first n terms is 60, find n and d, the common difference.
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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#549 2016-05-27 15:32:57
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Series and Progressions
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
#550 2016-05-27 17:10:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: Series and Progressions
Hi;
Revised: In an Arithmetic Progression, the first term is 25, nth the is -17 and the sum of first n terms is 60, find n and d, the common difference.
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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