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#726 2017-03-22 00:35:21

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #337 is correct. Good work, bobbym!

SP #338. Find the next term of the A.P.

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#727 2017-03-22 04:13:08

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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#728 2017-03-22 17:03:20

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #338 is correct. Good work, bobbym!

SP #339. Write the first five terms of the following sequence whose nth term is

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#729 2017-03-22 17:20:50

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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#730 2017-03-22 22:35:44

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #339 is correct. Good work, bobbym!

SP #340. Write the first five terms of the following sequence whose nth term is

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#731 2017-03-23 08:09:12

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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#732 2017-03-23 15:54:24

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP#340 is correct. Good work, bobbym!

SP #341. Write the first five terms of the following sequence whose nth term is

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#733 2017-03-23 17:42:26

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

#734 2017-03-23 21:08:49

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #341 is correct. Neat work, bobbym!

SP #342. If

, the sum of first n terms, is given by
, then find its nth term.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#735 2017-03-24 15:28:21

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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#736 2017-03-27 00:30:42

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #342 is correct. Neat work, bobbym!

SP #343. The houses of a row are numbered consecutively from 1 to 49. Show that there is a value of x such that the sum of the numbers of the houses preceding the house numbered x is equal to the sum of the numbers of the houses following it. Find the value of x.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#737 2017-03-27 19:29:21

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

#738 2017-03-27 20:06:53

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #343 is correct. Excellent, bobbym!

SP #344. 150 workers were engaged to finish a piece of work in a certain number of days. Four workers dropped the second day, four more workers dropped the third day and so on. It takes 8 more days to finish the work now. Find the number of days in which the work was completed.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#739 2017-03-27 22:54:03

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

#740 2017-03-27 23:55:36

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #344 is perfect. Excellent, bobbym!

SP #345. Along a road lie an odd number of stones placead at intervals of 10 meters. These stones have to be assembled around the middle stone. A person can carry only one stone at a time. A man carried the job with one of the end stones by carrying them in succession. In carrying all the stones he covered a distance of 3 km. Find the number of stones.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#741 2017-03-28 12:38:40

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

#742 2017-03-28 14:45:27

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP#345 is perfect. Excellent, bobbym!

SP #346. In a flower bed there are 23 rose plants in the first row, 21 in the second row, 19 in the third row and so on. There are five plants in the last row. How many rows are there in the flower bed?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#743 2017-03-28 17:59:54

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

#744 2017-03-28 22:07:26

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #346 is correct. Neat work, bobbym!

SP #347. If the sum of n terms of an A.P. is

, then which of its terms is 164?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#745 2017-03-28 22:15:04

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

#746 2017-03-29 23:16:35

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #347 is correct. Excellent, bobbym!

SP #348. The first three terms of an A.P. respectively are 3y - 1, 3y + 5 and 5y + 1. Find the value of y.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#747 2017-03-30 11:30:46

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

#748 2017-04-14 16:54:02

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #348 is correct. Good work, bobbym!

SP #349. The sum of n terms of an Arithmetic Progression is

, then 164 is its which term?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#749 2017-04-14 17:50:09

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

#750 2017-04-15 23:21:24

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,441

Re: Series and Progressions

Hi;

The solution SP #349 is correct. Excellent, bobbym!

SP #350. If the sum of n terms of an A.P. be

and its common difference is 6, then its first term is ______.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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