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#4151 2015-11-12 10:59:07

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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#4152 2015-11-12 12:07:53

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solution #2599 is correct (both parts)! Excellent!

#2600. Find the point on x-axis which is equidistant from A (2,-5) and B (-2,9).


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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#4153 2015-11-12 23:30:07

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

#4154 2015-11-13 00:41:12

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solution #2600 is correct! Excellent!

#2601. Find the point on y-axis which is equidistant from the point A (6,5) and B (-4,3).


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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#4155 2015-11-13 16:11:12

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

#4156 2015-11-13 16:28:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The Solution #2601 is perfect! Good work!

#2602. Find the value of

when
.


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

#4157 2015-11-14 16:54:24

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

#4158 2015-11-14 17:45:43

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solution #2602 is perfect! Brilliant!

#2603. Two unbiased coins are tossed simultaneously. Find the probability of getting
(i) two heads
(ii) one head
(iii) one tail
(iv) at least one head
(v) at most one head
(vi) no head.


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

#4159 2015-11-16 21:34:59

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

#4160 2015-11-17 00:50:21

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solutions in #2603 (six parts) are perfect! Excellent!

#2604. Determine the ratio in which the line 3x + y - 9 = 0 divides the segment joining the points (1,3) and (2,7).


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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#4161 2015-11-17 11:18:14

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

#4162 2015-11-17 13:55:30

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solution #2604 (3:4) or (4:3) is correct! Excellent, bobbym!

#2605. Find the ratio in which the point (-3,p) divides the line segment joining the points (-5,-4) and (-2,3). Hence, find the value of 'p'.


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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#4163 2015-11-17 19:25:04

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

#4164 2015-11-17 19:40:42

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solution #2605 is correct (both parts)! Excellent!

#2606. In the following, determine whether the given quadratic equations have real roots on so, find the roots.


.


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

#4165 2015-11-18 06:03:53

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

#4166 2015-11-18 11:39:47

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solutions (two parts) in #2606 are correct! Perfect!

#2607. Solve for 'x' :

.


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

#4167 2015-11-19 14:48:47

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

#4168 2015-11-19 18:06:44

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solution(s) is #2607 are correct! Exemplary!

#2608. Find the Discriminant of the of the quadratic equation :

.


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

#4169 2015-11-19 19:44:52

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

#4170 2015-11-19 21:47:36

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The solution #2608 is correct! Good work!

#2609. Find the value of 'k' for which the following equation has equal roots:

.


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

#4171 2015-11-21 20:25:33

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

#4172 2015-11-21 21:06:02

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

Good work, bobbym!

Use

#2610. A horse is tied to a pole with 28 meter long string. Find the area where the horse can graze.

#2611. A steel wire is bent in the form of a square encloses n area of 121 square centimeters. If the same wire is bent in the form of a circle, find the area of the circle.


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

#4173 2015-11-22 05:05:50

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

#4174 2015-11-22 09:00:09

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Oral puzzles

Hi bobbym,

The silutions #2610 and #2611 are both correct! Neat work!

#2612. The radii of two circles are 19 cm and 9 cm respectively. Find the radius and area of the circle which has its circumference equal to the sum of the circumferences of the two circles.


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

#4175 2015-11-22 21:20:37

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

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