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**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solutions in SP#311 (two values) are correct. Neat work, bobbym!

SP#312.In an Arithmetic Progression, given d = 5,

, find a and .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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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solutions in SP#312 are correct. Neat work, bobbym!

SP#313. In as Arithmetic Progression, given a = 2, d = 8,

find n and .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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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solutions in SP#313 are correct. Good work, bobbym!

SP#314. In an Arithmetic Progression, given a = 8,

find n and d.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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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solutions in SP#314 are correct. Good work, bobbym!

SP#315. In an Arithmetic Progression, given

, find n and a.Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solutions in SP#315 are correct. Good work, bobbym!

SP#316. In an Arithmetic Progression, given a = 3, n = 8,

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solution SP#316 is correct. Well done, bobbym!

SP#317. Find the sum of first 25 terms of the Arithmetic Progression whose second term in 9 and 4th term is 21.

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solution SP#317 is correct. Excellent, bobbym!

SP#318. Find the sum 3 + 11 + 19 + ..... + 803.

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solution SP#318 is correct. Excellent, bobbym!

SP#319. The first and the last terms of an Arithmetic Progression are -4 and 146 and the sum of the A.P. is 7171. Find the number of terms in the A.P. and the common difference.

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solution SP#319 (two parts) is correct. Good work, bobbym!

SP#320. Find the sum of 22 terms of an Arithmetic Progression in which d = 7 and 22nd term is 149.

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**

**ganesh****Moderator**- Registered: 2005-06-28
- Posts: 21,812

Hi;

The solution SP#320 is correct. Neat work, bobbym!

SP#321. Find the sum of first 51 terms of an Arithmetic Progression whose second and third terms are 14 and 18 respectively.

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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 107,148

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.**

**Online**