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#2151 2012-09-07 11:51:10

Denominator
Member
Registered: 2009-11-23
Posts: 155

Re: Oral puzzles

Hello

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#2152 2012-09-07 23:55:46

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2153 2012-09-08 00:08:07

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#2154 2012-09-08 20:58:32

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2155 2012-09-08 21:02:18

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2156 2012-09-09 23:13:29

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2157 2012-09-09 23:21:45

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2158 2012-09-10 07:35:41

Denominator
Member
Registered: 2009-11-23
Posts: 155

Re: Oral puzzles

Hello

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#2159 2012-09-10 20:54:59

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2160 2012-09-10 21:03:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2161 2012-09-12 00:08:19

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2162 2012-09-12 00:31:01

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2163 2012-09-12 13:39:03

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2164 2012-09-12 13:52:22

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2165 2012-09-13 20:45:43

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2166 2012-09-13 20:55:23

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2167 2012-09-14 22:56:02

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2168 2012-09-15 00:13:02

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2169 2012-09-15 08:47:10

Denominator
Member
Registered: 2009-11-23
Posts: 155

Re: Oral puzzles

Hello

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#2170 2012-09-15 20:53:13

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2171 2012-09-15 22:04:47

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2172 2012-09-16 20:22:27

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2173 2012-09-16 20:59:06

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

#2174 2012-09-17 20:32:30

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,447

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.

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#2175 2012-09-17 23:06:56

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,705

Re: Oral puzzles

Hi ganesh;


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Online

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