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## #2301 2012-11-21 21:18:29

bobbym

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### Re: Oral puzzles

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2302 2012-11-22 15:33:20

ganesh
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### 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.

Character is who you are when no one is looking.

## #2303 2012-11-22 20:53:19

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2304 2012-11-23 15:57:45

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1651 is correct. Good work!

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

Character is who you are when no one is looking.

## #2305 2012-11-23 20:14:30

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2306 2012-11-24 19:52:29

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1652 is correct. Neat work!

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

Character is who you are when no one is looking.

## #2307 2012-11-24 19:58:11

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2308 2012-11-25 17:18:08

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1653 is perfect. Neat work!

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

Character is who you are when no one is looking.

## #2309 2012-11-25 19:38:18

bobbym

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### Re: Oral puzzles

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2310 2012-11-26 18:01:26

ganesh
Moderator

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### 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.

Character is who you are when no one is looking.

## #2311 2012-11-26 19:13:01

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2312 2012-11-27 17:08:01

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1655 is perfect. Excellent!

#1656. Solve the quadratic equation : 100x2 - 20x + 1 = 0.

Character is who you are when no one is looking.

## #2313 2012-11-27 18:11:32

bobbym

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### Re: Oral puzzles

Hi ganesh

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2314 2012-11-28 18:06:21

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1656 is correct. Perfect!

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

Character is who you are when no one is looking.

## #2315 2012-11-28 23:21:10

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2316 2012-11-29 15:06:16

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1657 is correct. Good work!

#1658. Find the solutions of the quadratic equation : 2x2 - 7x + 3 = 0.

Character is who you are when no one is looking.

## #2317 2012-11-29 19:14:51

bobbym

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### Re: Oral puzzles

Hi ganesh;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2318 2012-11-30 17:44:20

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1658 is perfect. Neat work!

#1659. Find the roots of the equation :

, x ≠ 0

Character is who you are when no one is looking.

## #2319 2012-11-30 18:29:05

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2320 2012-12-01 18:01:00

ganesh
Moderator

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### 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.

Character is who you are when no one is looking.

## #2321 2012-12-01 19:18:27

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2322 2012-12-02 16:52:26

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1660 is perfect. Good work!

#1661. Find the roots of

, x ≠ -4, 7.

Character is who you are when no one is looking.

## #2323 2012-12-02 19:33:37

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

## #2324 2012-12-03 17:55:16

ganesh
Moderator

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### Re: Oral puzzles

Hi bobbym,

The solution #1661 is perfect. Good work!

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

.

Character is who you are when no one is looking.

## #2325 2012-12-03 20:07:22

bobbym

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### Re: Oral puzzles

Hi;

In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.