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#4326 2012-12-01 22:12:18

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

Re: 10 second questions

Hi ganesh;


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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#4327 2012-12-02 18:45:21

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

The solutions #4455 and #4456 are correct. Excellent!

#4457. Fin pd the value of k such that 2/3, k, 5/8 are the three consecutive of n Arithmetic Progression.

#4458. Find the common difference and write the next four terms of the following arithmetic progression :

-1, 1/4, 3/2, ......


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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#4328 2012-12-02 21:18:56

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

Re: 10 second questions

Hi ganesh;



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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#4329 2012-12-03 18:35:46

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

The solutions #4457 and #4458 are correct. Brilliant!

Find the number of terms in the following Arithmetic Progression:

#4459. 7, 13, 19, .........., 205.

#4460. 18, 15.5, 13, ............., -47.


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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#4330 2012-12-03 20:19:14

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

Re: 10 second questions

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

#4331 2012-12-04 18:10:56

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

The solutions #4459 and #4460 are correct. Neat work!

#4461. Find the 31st term of an Arithmetic Progression whose 11th term is 38 and the 16th term is 73.

#4462. An Arithmetic Progression consists of 50 terms of which 3rd term is 12 and the last term is 106. Find the 29th term.


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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#4332 2012-12-04 18:32:15

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

Re: 10 second questions

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

#4333 2012-12-05 18:55:31

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

The solution #4461 is perfect. Good work!

I was unable to view the solution #4462.

#4463. The 17th term of an Arithmetic Progression exceeds its 10th term by 7. Find the common difference.

#4464. Which term of the Arithmetic Progression 3, 15, 27, 39, .... would be 132 more than its 54th term?


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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#4334 2012-12-05 20:54:36

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

Re: 10 second questions

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

#4335 2012-12-06 18:39:23

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

The solutions #4463 and #4464 are correct. Marvelous!

#4465. How many three-digit numbers are divisible by 7?

#4466. How many multiples of 4 lie between 10 and 250?


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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#4336 2012-12-07 19:17:53

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

#4467. Find the 20th term from the last term of the Arithmetic Progression : 3, 8, 13, ......, 253.


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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#4337 2012-12-07 19:21:39

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 16,049

Re: 10 second questions

Hi ganesh

I don't get the question. What should we find?


“Here lies the reader who will never open this book. He is forever dead.
“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.

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#4338 2012-12-07 21:17:23

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

Re: 10 second questions

Hi  anonimnystefy;

I think he wants the 30th term.

Hi ganesh;


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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#4339 2012-12-08 19:23:48

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi anonimnystefy and bobbym,

Find the sum of the following Arithmetic Progressions:

#4468. 2, 7, 12, ..., to 10 terms.

#4469. -37, -33, -29, ....., to 12 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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#4340 2012-12-08 20:59:45

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

Re: 10 second questions

Hi ganesh;


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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#4341 2012-12-09 14:45:35

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

Re: 10 second questions

#4468.)


igloo myrtilles fourmis

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#4342 2012-12-09 18:57:52

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi,

bobbym : The solutions #4468 and #4469 are correct. Neat work!

John E. Franklin : The solution #4468 is correct. Good work!

#4470. Find the sum : 7 + 10.5 + 14 + .... + 84.

#4471. Find the sum : 34 + 32 + 30 + ..... + 10.


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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#4343 2012-12-09 21:31:40

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

Re: 10 second questions

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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#4344 2012-12-10 19:32:06

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

The solutions #4470 and #4471 are correct. Good work!

#4472. Find the sum of the Arithmetic Progression : -5 + (-8) + (-11) + ,,,,, + (-230).

#4473. In an Arithmetic Progression, given a = 5, d = 3, a[sub]n[/sub] = 50, find n and S[sub]n[/sub].


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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#4345 2012-12-10 19:53:09

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

Re: 10 second questions

4472.)


igloo myrtilles fourmis

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#4346 2012-12-10 19:53:29

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

Re: 10 second questions

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

#4347 2012-12-11 18:16:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi,

John E. Fraklin : The solution #4472 is correct. Smart work!

bobbym : The solutions #4472 and #4473 are correct. Excellent!

#4474. In an Arithmetic Progression, given a[sub]12[/sub] = 37, d = 3, find a and S[sub]12[/sub].

#4475. In an Arithmetic Progression, given a[sub]3[/sub] = 15, S[sub]10[/sub] = 125, find d and a[sub]10[/sub].


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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#4348 2012-12-11 20:51:14

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

Re: 10 second questions

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

#4349 2012-12-12 18:46:41

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,954

Re: 10 second questions

Hi bobbym,

The solutions #4474 and #4475 are correct. Neat work!

#4476. How many terms of the Arithmetic Progression 9, 17, 25, ..... must be taken to give a sum of 636?

#4477. The first term of an Arithmetic Progression is 5, the last term is 45 and the sum is 400. Find the number of terms and 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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#4350 2012-12-12 19:30:30

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

Re: 10 second questions

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

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