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Amid
Joined: 23 Jan 2006
Posts: 7
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 Posted: Mon Jan 23, 2006 8:24 pm Post subject: Can Any body help me for solving this problem |
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1)
There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one.How long ago did Ramesh light the two candles.
2)
A company contract to paint 3 houses. Mr. Brown, can paint a house in 6 days while Mr.Black would take 8 days and Mr. Blue 12 days.After 8 days Mr. Brown goes on vacation and Mr.Black begins to work for a period of 6days. How many days will it take Mr.Brown to complete the contract ? |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Tue Jan 24, 2006 2:23 pm Post subject: Re: Can Any body help me for solving this problem |
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| Amid wrote: | 1)
There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one.How long ago did Ramesh light the two candles.
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3 hours, b4 2 bed |
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Amid
Joined: 23 Jan 2006
Posts: 7
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| Posted: Tue Jan 24, 2006 8:16 pm Post subject: |
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hello CZ@@@H@@@R,
thank u my friend. I want how the answer came and please give me some clue about this question. |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Wed Jan 25, 2006 6:17 pm Post subject: |
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| Amid wrote: | hello CZ@@@H@@@R,
thank u my friend. I want how the answer came and please give me some clue about this question. |
<a> It's a quick fix. let L be initial length.
At t = 3 hour, Thicker : L/2 and Thinner = L/4.
However, a generalised approach would be:
Length of Thicker(x) and Thinner(y) at any time t.
t=0, x=y=L, t=6,x=0 t=4,y=0
Thicker: x/L=1-(t/6) Thinner: y/L=1-(t/4)
Ratio = R = (1-(t/6))/(1-(t/4))=2
Hence 3 hours
<c> Above can also be derived graphically and applying similar Triangles, t = 3 hours |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Wed Jan 25, 2006 6:19 pm Post subject: |
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| Amid wrote: | hello CZ@@@H@@@R,
thank u my friend. I want how the answer came and please give me some clue about this question. |
(a) It's a quick fix. let L be initial length.
At t = 3 hour, Thicker : L/2 and Thinner = L/4.
(b) However, a generalised approach would be:
Length of Thicker(x) and Thinner(y) at any time t.
t=0, x=y=L, t=6,x=0 t=4,y=0
Thicker: x/L=1-(t/6) Thinner: y/L=1-(t/4)
Ratio = R = (1-(t/6))/(1-(t/4))=2
Hence 3 hours
(c) Above can also be derived graphically and applying similar Triangles, t = 3 hours |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Wed Jan 25, 2006 8:30 pm Post subject: Re: Can Any body help me for solving this problem |
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| Amid wrote: | 1)
There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one.How long ago did Ramesh light the two candles.
2)
A company contract to paint 3 houses. Mr. Brown, can paint a house in 6 days while Mr.Black would take 8 days and Mr. Blue 12 days.After 8 days Mr. Brown goes on vacation and Mr.Black begins to work for a period of 6days. How many days will it take Mr.Brown to complete the contract ? |
Could u please check the question ????? |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Wed Jan 25, 2006 8:32 pm Post subject: Q2 |
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| I mean Q 2) |
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Amid
Joined: 23 Jan 2006
Posts: 7
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| Posted: Thu Jan 26, 2006 2:51 pm Post subject: |
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i'm sorry actually the 2nd question is:-
A company contract to paint 3 houses. Mr. Brown, can paint a house in 6 days while Mr.Black would take 8 days and Mr. Blue 12 days.After 8 days Mr. Brown goes on vacation and Mr.Black begins to work for a period of 6days. How many days will it take Mr.Blue to complete the contract ? |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Thu Jan 26, 2006 5:53 pm Post subject: |
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| Amid wrote: | i'm sorry actually the 2nd question is:-
A company contract to paint 3 houses. Mr. Brown, can paint a house in 6 days while Mr.Black would take 8 days and Mr. Blue 12 days.After 8 days Mr. Brown goes on vacation and Mr.Black begins to work for a period of 6days. How many days will it take Mr.Blue to complete the contract ? |
11 days |
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Amid
Joined: 23 Jan 2006
Posts: 7
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| Posted: Thu Jan 26, 2006 6:46 pm Post subject: |
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| please I want detail description about this question not only ans. |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Thu Jan 26, 2006 6:53 pm Post subject: Q 2 |
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| Amid wrote: | | please I want detail description about this question not only ans. |
( 8/6 )+( 6/8 )+( x/12 ) = 3, Hence x = 11 days |
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Amid
Joined: 23 Jan 2006
Posts: 7
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| Posted: Fri Jan 27, 2006 9:51 am Post subject: |
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Thaknk you for solving these questions.Again I have some doubts on the following questions:-
1) A cofee shop blends 2 kinds of cofee,putting in 2 parts of a 33p. a gm grade to 1 part of a 24p. a gm.If the mixture is changed to 1 part of the 33p. a gm to 2 parts of the less expensive grade,how much will the shop save in blending 100 gm.
2) city A's population 68000 decrease at a rate of 80 people per year.City B having population 42000 is increase at a rate of 120 people per year in how many year both the citis will have same population
please solve this problem with description. |
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Amid
Joined: 23 Jan 2006
Posts: 7
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| Posted: Sat Jan 28, 2006 4:09 pm Post subject: |
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| Hello please solve my questions atleast the first one, i did not get the correct answer of this questions. |
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CZ@@@H@@@R
Serious about CAT
Joined: 14 Jan 2006
Posts: 64
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| Posted: Sat Jan 28, 2006 6:15 pm Post subject: Answers |
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| Amid wrote: | | Hello please solve my questions atleast the first one, i did not get the correct answer of this questions. |
(1) Rs. 3.00
(2) 130 years |
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Amid
Joined: 23 Jan 2006
Posts: 7
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| Posted: Sun Jan 29, 2006 12:08 am Post subject: |
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| plz give me some description about these problems. I know these answers but i could not able to solve this.So plz give me some clue. |
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