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#2151 2012-09-08 09:51:10
#2152 2012-09-08 21:55:46
- ganesh
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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 ____________.
Character is who you are when no one is looking.
#2153 2012-09-08 22:08:07
- bobbym
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2154 2012-09-09 18:58:32
- ganesh
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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?
Character is who you are when no one is looking.
#2155 2012-09-09 19:02:18
- bobbym
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2156 2012-09-10 21:13:29
- ganesh
- Moderator
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Re: Oral puzzles
Hi bobbym,
The solution
#1582. If A is 150 percent of B, then B is what percent of (A + B)?
Character is who you are when no one is looking.
#2157 2012-09-10 21:21:45
- bobbym
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2158 2012-09-11 05:35:41
#2159 2012-09-11 18:54:59
- ganesh
- Moderator
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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?
Character is who you are when no one is looking.
#2160 2012-09-11 19:03:29
- bobbym
- Administrator
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2161 2012-09-12 22:08:19
- ganesh
- Moderator
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Re: Oral puzzles
Hi bobbym,
#1584. What percent of 7.2 kilograms is 18 grams?
Character is who you are when no one is looking.
#2162 2012-09-12 22:31:01
- bobbym
- Administrator
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2163 2012-09-13 11:39:03
- ganesh
- Moderator
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Re: Oral puzzles
Hi bobbym,
The solution #1584 is perfect. Neat job!
#1585. 40% of 1640 + ? = 35% of 980 + 150% of 850
Character is who you are when no one is looking.
#2164 2012-09-13 11:52:22
- bobbym
- Administrator
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2165 2012-09-14 18:45:43
- ganesh
- Moderator
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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?
Character is who you are when no one is looking.
#2166 2012-09-14 18:55:23
- bobbym
- Administrator
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2167 2012-09-15 20:56:02
- ganesh
- Moderator
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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?
Character is who you are when no one is looking.
#2168 2012-09-15 22:13:02
- bobbym
- Administrator
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2169 2012-09-16 06:47:10
#2170 2012-09-16 18:53:13
- ganesh
- Moderator
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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?
Character is who you are when no one is looking.
#2171 2012-09-16 20:04:47
- bobbym
- Administrator
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2172 2012-09-17 18:22:27
- ganesh
- Moderator
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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?
Character is who you are when no one is looking.
#2173 2012-09-17 18:59:06
- bobbym
- Administrator
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Re: Oral puzzles
Hi;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.
#2174 2012-09-18 18:32:30
- ganesh
- Moderator
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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?
Character is who you are when no one is looking.
#2175 2012-09-18 21:06:56
- bobbym
- Administrator
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Re: Oral puzzles
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
Probability is the most important concept in modern science, especially as nobody has the slightest notion what it means.
90% of mathematicians do not understand 90% of currently published mathematics.