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 New Math Challenge

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Posted on 10-26-07 1:02 AM     Reply [Subscribe]
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Using all the digits 1 to 9, each once only, make two numbers, one of which is exactly twice the other.


 
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Posted on 10-26-07 10:43 AM     Reply [Subscribe]
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Hi dudes,

If I am right, the answer should be:

123456789 and 246913578



 
Posted on 10-26-07 10:43 AM     Reply [Subscribe]
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Last edited: 26-Oct-07 10:46 AM
Last edited: 26-Oct-07 10:47 AM

 
Posted on 10-26-07 10:48 AM     Reply [Subscribe]
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That decimal (.) was to avoid sajha's making first letter graphical.

If the decimal was part of solution, then second number wouldn't be double the first number.

It asks to use all 9 digits, and each of them only once.

So, I think I am not wrong.

 
Posted on 10-26-07 10:48 AM     Reply [Subscribe]
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DEBONAIR SOLTEE UR WAY OFF THE ANS... SORRY TO SAY THAT...
JUS HAVE A LOOK AT IT
123456789*2 = 246913578 THAT IS TRUE BUT
WHEN U MULTIPLY THE INDIVIDUAL NO.S ITS NOT TRUE WID UR ANSWER U ARE SAYIN
1*2=2 TRUE
2
*2=4 TRUE
3*2=6 TRUE
4*2=8 FALSE IN UR ANSWER
5*2=10 FALSE IN UR ANSWER
6*2=12 FALSE IN UR ANSWER
7*2=14 FALSE IN UR ANSWER
8*2=16 FALSE IN UR ANSWER
9*2=18 FALSE IN UR ANSWER
 
Posted on 10-26-07 10:50 AM     Reply [Subscribe]
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WELL WHO KNOWS... ONLY GOD KNOWS... SHREE PASHUPATI NATH LEY YO QUESTION HALNE MANCHE KO RAKCHYA GARUN. JAI NEPAL.

 
Posted on 10-26-07 10:52 AM     Reply [Subscribe]
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Garrrate! woohoo @ debonair.

But, the challenge is "Using all the digits 1 to 9, each once only, make two numbers". So, the question is ... what does OcRam mean by "each once only, make two numbers"? It is such a dubious phrase.


 
Posted on 10-26-07 11:02 AM     Reply [Subscribe]
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Spiderman, debonair is right as long as we consider "each once only, make two numbers"phrase as we may create replica of 1-9 to create two different numbers. But apparently, I do not think that is what OcRam means.

 


 
Posted on 10-26-07 11:05 AM     Reply [Subscribe]
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Posted on 10-26-07 11:05 AM     Reply [Subscribe]
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YA SAME HERE I AM CONFUSED TOO.. HIS QUESTION DOENT MAKES SENSE AT ALL... AS I SAID MAY GOD BLESS HIM/HER

 
Posted on 10-26-07 11:06 AM     Reply [Subscribe]
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considering how ocram has stated the question (unless otherwise stated) i think praksah je answer is the most correct one. or else ocram needs to mention the number of digits in each number and its not clear whether each digits should be used only once in both number or only one of the two numbers. btw MM don't you think youre making it more complicated LOL
 
Posted on 10-26-07 11:07 AM     Reply [Subscribe]
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OcRam,

Can you clarify on your question?

 
Posted on 10-26-07 11:09 AM     Reply [Subscribe]
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OcRam must be laughing looking at screen. :)

In the meanwhile, I give 100 points to all participants.

Thank you.


 
Posted on 10-26-07 11:12 AM     Reply [Subscribe]
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YEA I THINK SO... I AM MAKING THIS THING MORE CONFUSING WID MY EACH POST AND MY POSTS ARE ABOUT TO RUN OUT... I HAVE ALREADY USED 50 THIS MAKES 51 NOW I SHOULD USE MY POSTS WISELY LOL

 
Posted on 10-26-07 11:18 AM     Reply [Subscribe]
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in both cases .. we got the answer .. from prakash ji and debonair .. Macuramamche ... U really speak too fast .. just think twice before you conclude other wrong ... by the way ..how old r u ? I think u r not more than 20 years...and must be high school student ..
 
Posted on 10-26-07 11:22 AM     Reply [Subscribe]
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YA I AM HI SKOOLER... WHY??? AND 18 YRS OLD... TURNED 18  EXACTLY 2 WEEKS AGO
Last edited: 26-Oct-07 11:23 AM

 
Posted on 10-26-07 12:13 PM     Reply [Subscribe]
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raascal was correct. I have another answer too, 13458 is exactly twice 6729.
 
Posted on 10-26-07 12:19 PM     Reply [Subscribe]
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123456789:

First Set: 246913578

Second: 426913578

QED!!!!


 
Posted on 10-26-07 12:21 PM     Reply [Subscribe]
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Hey guys you all are giving the wrong answers. You may not have understood the question clearly. I know the answer so I am clarifying the question. You should have all digits consisting of 1 to 9 without repitition. You cannot take only some (say 13458 ). The number should contain nine digits consisting 1 to 9 and the double of it also should have 9 digits between 1 to 9 without repitition in both.

so you cannot say 6729 and its double is 13458 or similar which has less than nine digits.

The answer given by debonair is right.

123456789 and its double 246913578 each with 9 digits and no repitition


 
Posted on 10-26-07 12:23 PM     Reply [Subscribe]
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Repeating:

First Set:

123456789 x2=246913578

 

Second Set:

213456789x2=426913578

 

Is it correct?


 
Posted on 10-26-07 4:40 PM     Reply [Subscribe]
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I was expecting answer that was given by Raascal and Marconi. But I m happy to get so many answers which are also correct as per the question. Thank you.

 



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