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#4301 2012-11-19 19:05:07

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4429 and #4430 are correct. Neat work!

#4431. Solve :

#4432. Solve :


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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#4302 2012-11-20 04:17:32

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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#4303 2012-11-20 16:28:45

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4431 and #4432 are correct. Brilliant!

#4433. Solve :

#4434. Solve :

.


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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#4304 2012-11-20 22:23:31

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

Re: 10 second questions

Hi ganesh;

Do not worry about the error.


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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#4305 2012-11-21 16:21:48

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4433 and #4434 are correct. Neat work!

#4435. Solve :

#4436. Solve : 6x + 3y = 6xy and 2x + 4y = 5xy.


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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#4306 2012-11-21 21:55:08

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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#4307 2012-11-22 16:49:14

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4435 and #4436 are correct. Marvelous!

#4437.  Solve :

#4438. Solve :


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.

Offline

#4308 2012-11-22 21:23:57

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

#4309 2012-11-23 20:47:09

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4437 and #4438 are correct. Brilliant!

#4439. Solve : 35x + 23y = 209 and 23x + 35y = 197.

#4440. Solve : 4/x + 5y = 7 and 3/x + 4y = 5.


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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#4310 2012-11-23 20:51:06

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.

Offline

#4311 2012-11-24 18:11:28

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4439 and #4440 are correct. Smart work!

#4441. Solve :

.

#4442. Solve :

.


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.

Offline

#4312 2012-11-24 20:40:19

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

#4313 2012-11-25 18:39:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4441 and #4442 are perfect. Outstanding!

#4443. Seven times a two-digit number is equal to four times the number obtained by reversing the digits. If the difference between the digits is 3, find the number.

#4444. A takes 3 hours more than B to cover  distance of 30 kilometers. But, if A doubles his speed he is ahead of B by 90 minutes; find their speeds of walking.


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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#4314 2012-11-25 20:35:24

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

#4315 2012-11-26 17:59:42

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4443 and #4444 are correct. Superlative!

Find the roots of the quadratic equations.

#4445. x[sup]2[/sup] - 3x - 10 = 0

#4446. 2x[sup]2[/sup] + x - 6 = 0


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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#4316 2012-11-26 19:13:47

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

#4317 2012-11-27 19:01:23

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4445 and #4446 are correct. Neat job!

#4447. Solve :

.

#4448. Solve :

.


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.

Offline

#4318 2012-11-28 00:24:41

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

#4319 2012-11-28 15:59:16

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4447 and #4448 are correct. Brilliant!

#4449. Find two consecutive positive integers, sum of whose squares is 365.

#4450. The altitude of a right triangle is 7 centimeters less than its base. If the hypotenuse is 13 centimeters, find the other two sides.


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.

Offline

#4320 2012-11-28 20:18:43

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

#4321 2012-11-29 18:36:00

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4449 and #4450 are perfect. Good work!

#4451. Solve : 2x[sup]2[/sup] + x - 4 = 0.

#4452. Solve :


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.

Offline

#4322 2012-11-29 21:31:24

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.

Offline

#4323 2012-11-30 18:51:18

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4451 and #4452 are correct. Excellent!

#4453. The sum of the reciprocals of Rehman's age, (in years) 3 years ago and 5 years from now is 1/3. Find his present age.

#4454. In a class test, the sum of Shefali's marks in Mathematics and English is 30. Had she got 2 marks more in Mthematics and 3 marks less in English, the product would have been 210. Find her marks in the two subjects.


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.

Offline

#4324 2012-11-30 20:20:16

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.

Offline

#4325 2012-12-01 17:43:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,839

Re: 10 second questions

Hi bobbym,

The solutions #4453 and #4454 are correct. Brilliant!

#4455. The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find the two numbers.

#4456. A train travels 360 kilometers at a uniform speed. If the speed had 5 kilometers per hour more, it would have taken 1 hour less for the same journey. Find the speed of the train.


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.

Offline

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