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#3926 2015-08-24 23:48:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

The solution #2447 is correct! Brilliant!

#2448.  Find the distance between the points (-5, 7) and (-1, 3).


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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#3927 2015-08-25 20:12:42

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

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#3928 2015-08-25 23:28:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

The solution #2446 is correct!

#2447.  Check whether (5, -2), (6, 4), and (7, -2) are the vertices of an isoceles triangle (by distance formula).


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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#3929 2015-08-26 21:11:29

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

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#3930 2015-08-26 21:33:16

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

The solution #2447 is correct!  Excellent!

#2448.  Name the type of quadrilateral formed,  if any,  by the following points,  and give reasons for your answer.
(-1, -2),  (1, 0), (-1, 2),  (-3, 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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#3931 2015-08-27 19:16:43

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3932 2015-08-27 23:21:53

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

The solution #2448 is correct!  Good work!

#2449.  Find a relation between x and y such that the point (x, y) is equidistant from the point (3, 6) and (-3, 4).


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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#3933 2015-08-28 18:33:53

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3934 2015-08-28 20:59:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

The solution #2449 is correct! Neat work!

#2450. Determine the 10th term from the end of the Arithmetic Progression 4,9,14, .... , 254.


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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#3935 2015-08-29 20:17:56

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

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#3936 2015-08-29 20:57:18

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

#2451.  Determine the general term of an Arithmetic Progression whose 7th term is -1 and 16th term is 17


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

#3937 2015-08-30 05:59:43

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3938 2015-08-30 10:35:50

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

#2452.  Four chairs and three tables cost $2100; five chairs and two tables cost $1750. Find the cost of a chair and table separately.


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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#3939 2015-08-30 11:44:31

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,432
Website

Re: Oral puzzles

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#3940 2015-08-30 12:15:39

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi zetafunc,

The solution #2452 is correct!  Excellent!

#2453.  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

#3941 2015-08-30 13:28:11

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3942 2015-08-30 16:04:30

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym,

The solution #2453 is correct! Excellent!

#2454. A fraction becomes 4/5, if 1 is added to both numerator and denominator. If, however, 5 is subtracted from both numerator and denominator, the fraction becomes 1/2.  What is the fraction?


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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#3943 2015-08-30 20:23:05

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,432
Website

Re: Oral puzzles

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#3944 2015-08-30 21:17:00

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3945 2015-08-30 21:19:12

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi zetafunc and bobbym,

The solution #2454 is correct! Very well done '

#2455. Ten years ago, father was twelve times as old as his son and ten years hence, he will be twice as old as has son will be. Find their present ages.


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

#3946 2015-08-30 21:29:21

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

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.
Always satisfy the Prime Directive of getting the right answer above all else.

Offline

#3947 2015-08-30 21:29:47

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,432
Website

Re: Oral puzzles

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#3948 2015-08-30 22:13:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi bobbym and zetafunc,

The solution #2455 is correct! Good work!

#2456. 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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#3949 2015-08-30 22:58:06

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,432
Website

Re: Oral puzzles

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#3950 2015-08-30 23:36:56

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,966

Re: Oral puzzles

Hi zetafunc,

The solution #2456 is correct!  Keep it up!

#2467.  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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