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#2301 2012-11-20 22:18:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

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.
Thinking is cheating.

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#2302 2012-11-21 16:33:20

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1650 is perfect. Good work!

#1651. 90% and 97% pure acid solutions are mixed to obtain 21 liters of 95% pure acid solution. Find the amount of each type of acid to be mixed to form the mixture.


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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#2303 2012-11-21 21:53:19

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2304 2012-11-22 16:57:45

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1651 is correct. Good work!

#1652. Solve : 2x + y = 5 and 3x + 2y = 8.


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

#2305 2012-11-22 21:14:30

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2306 2012-11-23 20:52:29

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1652 is correct. Neat work!

#1653. Solve : x - 3y - 7 = 0 and 3x - 3y - 15 = 0.


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

#2307 2012-11-23 20:58:11

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2308 2012-11-24 18:18:08

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1653 is perfect. Neat work!

#1654. Solve : 152x - 378y = -74 and -378x + 152y = -604.


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

#2309 2012-11-24 20:38:18

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

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.
Thinking is cheating.

Offline

#2310 2012-11-25 19:01:26

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1654 is correct. Excellent!

#1655. On selling a TV at 5% gain and a fridge at 10% gain, a shopkeeper gains $2000. But if he sells the TV at 10% gain and the fridge at 5% loss, he gains $1500 on the transaction.  Find the actual price of the TV and fridge.


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

#2311 2012-11-25 20:13:01

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2312 2012-11-26 18:08:01

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1655 is perfect. Excellent!

#1656. Solve the quadratic equation : 100x[sup]2[/sup] - 20x + 1 = 0.


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

#2313 2012-11-26 19:11:32

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

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.
Thinking is cheating.

Offline

#2314 2012-11-27 19:06:21

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1656 is correct. Perfect!

#1657. Find two numbers whose sum is 27, and product is 182.


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

#2315 2012-11-28 00:21:10

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2316 2012-11-28 16:06:16

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1657 is correct. Good work!

#1658. Find the solutions of the quadratic equation : 2x[sup]2[/sup] - 7x + 3 = 0.


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

#2317 2012-11-28 20:14:51

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

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.
Thinking is cheating.

Offline

#2318 2012-11-29 18:44:20

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1658 is perfect. Neat work!

#1659. Find the roots of the equation :

, x ≠ 0


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

#2319 2012-11-29 19:29:05

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2320 2012-11-30 19:01:00

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1659 is correct. Brilliant!

#1660. The diagonal of a rectangular field is 60 meters more than the shorter side. If the longer side is 30 meters more than the shorter side, find the sides of the field.


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

#2321 2012-11-30 20:18:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2322 2012-12-01 17:52:26

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1660 is perfect. Good work!

#1661. Find the roots of

, x ≠ -4, 7.


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

#2323 2012-12-01 20:33:37

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

#2324 2012-12-02 18:55:16

ganesh
Moderator
Registered: 2005-06-28
Posts: 19,175

Re: Oral puzzles

Hi bobbym,

The solution #1661 is perfect. Good work!

#1662. Find the next two terms of the Arithmetic Progression :

.


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

#2325 2012-12-02 21:07:22

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 100,334

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Thinking is cheating.

Offline

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