Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc and bobbym,

The Solution SP # 28 is correct, zetafunc! Good work!

To bobbym : The first and the fourth are extremes; the second the the third are means. Try solving the problem now!

SP # 29. A man repays a loan of $3250 by paying $20 in the first month and increases the payment by $15 every month. How long will it take him to clear the loan?

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

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc and bobbym,

The solution SP # 29 is correct! Excellent, zetafunc!

The solutions SP # 28 and SP # 29 are correct! Brilliant, bobbym!

SP # 30. Stephen started work in 1995 at an annual salary of $5000 and received a $200 raise eah year. In which year did his annual salary reach $7000?

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

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc and bobbym,

The solution is correct! Well done! I made a mistake in in wording the problem!

The problem ought to have been *Stephen started work in 1995 at an annual salary of $5000 and received a $200 raise each year. In what year did his annual salary reach $7000?*

and the solution : 11th year.

SP # 31. Find the nth term of the Arithmetic Progression 13, 8, 3, -2, ....

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc,

The solution SP # 31 is correct! Excellent, zetafunc!

SP # 32. If (x + 1), 3x, and (4x + 2) are in Arithmetic Progression, find the value of 'x'.

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc and bobbym,

The solution SP # 32 is correct! Good work, zetafunc and bobbym!

SP # 33. Determine the 10th term from the end of the Arithmetic Progression 4, 9, 14, ...., 254.

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc and bobbym,

The solution SP # 33 is correct! Well done, zetafunc and bobbym!

SP # 34. The 10th and 18th terms of an Arithmetic Progression are 41 and 73 respectively, find the 26th term.

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc and bobbym,

The solution SP # 34 is correct! Brilliant, zetafunc and bobbym!

SP # 35. Find the number of terms in the in Arithmeti Progression

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi bobbym,

The solution SP #35 is perfect! Excellent, bobbym!

SP # 36. Find 'n' if the given value of 'x' is the 'n'th term of the given Arithmetic Progression

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

Offline

**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

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

**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 30,847

Hi zetafunc and bobbym,

The solution SP # 36 is correct, bobbym! Good work!

SP # 37. If 10th and 18th terms of an Arithmetic Progression,are 19 and 41 respectively, find the 40th term.

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

Offline