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#1901 2012-05-29 22:28:37

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

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

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#1902 2012-05-30 21:38:56

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1477 is correct. Good work!

#1478. A person's salary was decreased by 25% and subsequently increased by 25%. What is the percentage increase/decrease?


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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#1903 2012-05-30 21:42:54

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

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

Offline

#1904 2012-05-31 23:53:33

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1478 is correct. Good work!

#1479. The average age of a class of 27 students is 10 years. If the teacher's age is included, the average is increased by 1. What is the age of the teacher?


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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#1905 2012-06-01 00:56:37

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

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

Offline

#1906 2012-06-01 18:09:36

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1479 is correct. Well done!

#1480. The ratio of the ages of mother to that of daughter is 7:3. After 5 years, this ratio would be 2:1. How many years old should the mother be at the time of birth of her daughter?


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

#1907 2012-06-01 23:08:03

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

#1908 2012-06-03 00:19:53

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1480 is correct. Neat job!

#1481. A man gains 20% by selling an article at a certain price. If he sells the same at half the price, the percentage of loss is how much?


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

#1909 2012-06-03 00:22:46

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

#1910 2012-06-03 17:36:49

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1481 is correct. Good work!

#1482. Aaron sold a table at a profit of 15%. Had he bought it at 10% less and sold it for $21 loss, he would have gained 25%. Find the Cost Price of the table.


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

#1911 2012-06-03 20:44:58

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

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

Offline

#1912 2012-06-04 23:44:51

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

#1483. If an article is sold at 10% gain, instead of 10% loss, the merchant would have got $25 more. Find the cost price.


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

#1913 2012-06-04 23:51:42

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.

Offline

#1914 2012-06-05 18:09:33

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1483 is correct. Good work!

#1484. The profit acquired by selling an article for $1,000 is double the loss when the same article is sold for $700. Find the Selling Price if the gain is to be 20%.


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

#1915 2012-06-05 18:52:02

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

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

Offline

#1916 2012-06-07 00:43:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

#1485. A reduction of 25% in the price of rice enables a person to buy 4 kilograms fore for $192. Find the original price per kilogram.


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

#1917 2012-06-07 01:03:16

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

#1918 2012-06-07 02:31:24

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

#1486. David saves 20% of his income although he spends $4000 per month. What is his annual income?


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

#1919 2012-06-07 05:04:46

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

#1920 2012-06-07 23:56:23

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1486 is correct. Well done!

#1487. If a man lose 4% by selling apples at 12 a dollar, how many a dollar must he sell them so as to gain 44%?


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

#1921 2012-06-08 00:09:21

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

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

Offline

#1922 2012-06-09 02:22:53

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1487 is perfect. Neat job!

#1488. I sell 20 articles for the same money as I paid for 25. What is my gain percent?


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

#1923 2012-06-09 04:44:55

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

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

Offline

#1924 2012-06-09 23:39:41

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,406

Re: Oral puzzles

Hi bobbym,

The solution #1488 is correct. Well done!

#1489. Two trains traveling in opposite direction cross each other in 25 seconds. If the length of both the trains are 250 meters each and the speed of one of them is 45 kilometers per hour, what would be the speed of the other train (in kilometers per hour)?


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

#1925 2012-06-09 23:59:53

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

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