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#2151 2012-09-07 11:51:10
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2152 2012-09-07 23:55:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym and Denominator,
The solution #1579 is correct, bobbym! Good work!
Denominator, is solution #1579
#1580. 10% of the voters did not cast their vote in an election between two candidates. 10% of the votes polled were invalid. The successful candidate got 54% of the valid votes and won by a majority of 1620 votes. The number of voters enrolled on the voters' list was ____________.
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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#2153 2012-09-08 00:08:07
- 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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#2154 2012-09-08 20:58:32
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
The solution #1580 is correct. Marvelous!
#1581. If x is 80% of y, then what percent of 2x is y?
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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#2155 2012-09-08 21:02:18
- 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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#2156 2012-09-09 23:13:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
The solution
#1582. If A is 150 percent of B, then B is what percent of (A + B)?
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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#2157 2012-09-09 23:21:45
- 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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#2158 2012-09-10 07:35:41
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2159 2012-09-10 20:54:59
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym and Denominator,
bobbym : The solution #1582 is correct. Excellent!
Denominator : The solution #1582
#1583. In a certain school, 20% of students are below 8 years of age. The number of students below 8 years of age is 2/3 of the number of students of 8 years age which is 48. What is the total number of students in the school?
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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#2160 2012-09-10 21:03:29
- 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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#2161 2012-09-12 00:08:19
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
#1584. What percent of 7.2 kilograms is 18 grams?
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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#2162 2012-09-12 00:31:01
- 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
#2163 2012-09-12 13:39:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
The solution #1584 is perfect. Neat job!
#1585. 40% of 1640 + ? = 35% of 980 + 150% of 850
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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#2164 2012-09-12 13:52:22
- 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
#2165 2012-09-13 20:45:43
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
The solution #1585 is correct. Good work!
#1586. In a city, 40% of the people are illiterate and 60% are poor. Among the rich, 10% are illiterate. What percentage of the poor population is illiterate?
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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#2166 2012-09-13 20:55:23
- 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
#2167 2012-09-14 22:56:02
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
The solution #1586 is correct. Brilliant!
#1587. 5/9 part of the population in a village are males. If 30% of the males are married, what is the percentage of unmarried females in the total population?
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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#2168 2012-09-15 00:13:02
- 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
#2169 2012-09-15 08:47:10
- Denominator
- Member
- Registered: 2009-11-23
- Posts: 220
Re: Oral puzzles
Hello
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#2170 2012-09-15 20:53:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym and Denominator,
The solution
Excellent, Denominator!
#1588. The salaries of A and B together amount to $2000. A spends 95%of his salary and B, 85% of his. If now, their savings are the same, what is A's salary?
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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#2171 2012-09-15 22:04:47
- 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
#2172 2012-09-16 20:22:27
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
The solution #1588 is correct. Excellent!
#1589. The price of a television set is decreased by 25% as a result of which the sale increased by 20%. What would be the effect on the total revenue of the shop?
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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#2173 2012-09-16 20:59:06
- 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
#2174 2012-09-17 20:32:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,406
Re: Oral puzzles
Hi bobbym,
The solution #1589 is correct. Neat job!
#1590. The income of a broker remains unchanged although the rate of commission is increased from 4% to 5%. What is the percentage of slump in business?
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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#2175 2012-09-17 23:06:56
- 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