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#2676 2014-06-13 02:57:25

ShivamS
Member
Registered: 2011-02-07
Posts: 3,557

Re: Oral puzzles

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#2677 2014-06-13 05:35:49

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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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#2678 2014-06-13 15:26:38

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi ShivamS and bobbym,

The solution #1827 is correct. Excellent, ShivamS and bobbym!

#1828. An article is sold at a certain price. By selling it at

of that price, one loses 10%. Find the gain percent at original price.


Character is who you are when no one is looking.

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#2679 2014-06-14 00:19:41

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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.

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#2680 2014-06-14 01:31:23

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

#1829. A tradesman sold an article at a loss of 20%. If the selling price had been increased by $100, there would have been a gain of 5%. What was the cost price of the article?


Character is who you are when no one is looking.

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#2681 2014-06-14 02:18:47

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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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#2682 2014-06-14 19:42:00

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1829 is correct. Neat job!

#1830. A man bought a horse and a carriage for $3000. He sold the horse at a gain of 20% and the carriage at a loss of 10%, thereby gaining 2% on the whole. Find the cost of the horse.


Character is who you are when no one is looking.

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#2683 2014-06-14 23:04:18

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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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#2684 2014-06-15 03:27:00

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1830 is perfect. Good work!

#1831. A retailer buys 40 pens at the marked price of 36 pens from a wholesaler. If he sells three pens giving a discount of 1%, what is the profit percent?


Character is who you are when no one is looking.

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#2685 2014-06-15 03:48:47

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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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#2686 2014-06-16 00:57:15

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1831 is correct. Neat job!

#1832. At what percentage above the cost price must an article be marked so as to gain 33% after allowing a customer a discount of 5%?


Character is who you are when no one is looking.

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#2687 2014-06-17 00:45:52

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

#1833. Sam purchased 20 dozens of toys at the rate of $375 per dozen. He sold each one of them at the rate of $33. What was his percentage profit?


Character is who you are when no one is looking.

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#2688 2014-06-17 00:59:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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.

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#2689 2014-06-17 03:18:24

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1833 is perfect. Neat job!

You missed problem #1832. I have reproduced it again now.

#1832. At what percentage above the cost price must an article be marked so as to gain 33% after allowing a customer a discount of 5%?


Character is who you are when no one is looking.

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#2690 2014-06-17 06:52:05

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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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#2691 2014-06-18 01:47:01

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solutions #1832 and #1833 are correct. Excellent!

(PS : The solution #1832 I get is 40%, not 40.35%)

#1834. 'A' sells an article which costs him $400 to 'B' at a profit of 20%. 'B' then sells it to 'C', making a profit of 10%  on the price he paid to 'A'. How much does 'C' pay 'B'?


Character is who you are when no one is looking.

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#2692 2014-06-18 02:18:34

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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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#2693 2014-06-19 00:58:22

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1834 is perfect. Good work!

#1835. When a commodity is sold for $34.80, there is a loss of 2%. What is the cost price of the commodity?


Character is who you are when no one is looking.

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#2694 2014-06-19 01:50:08

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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.

Offline

#2695 2014-06-19 14:32:05

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1835 is correct. Neat job!

#1836. Formulate the problem as a pair of equations and hence find their solution:

One number is greater than thrice the other number by 2. If 4 times the smaller number exceeds the greater number by 5, find the numbers.


Character is who you are when no one is looking.

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#2696 2014-06-19 18:55:57

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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.

Offline

#2697 2014-06-20 00:35:27

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1836 is correct. Marvelous!

#1837. The ratio of income of two persons is 9:7 and the ratio of their expenditure is 4:3. If each of them manages to save $2000 per month, find their monthly income.


Character is who you are when no one is looking.

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#2698 2014-06-20 05:30:01

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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.

Offline

#2699 2014-06-20 15:07:36

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,537

Re: Oral puzzles

Hi bobbym,

The solution #1837 is correct. Neat job!

#1838. Three chairs and two tables cost $700 and five chairs and three tables cost $1100. What is the cost of 2 chairs and 3 tables?


Character is who you are when no one is looking.

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#2700 2014-06-20 19:57:41

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 87,249

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.

Offline

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