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17 replies to this topic

#11 vinoth

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Posted 28 April 2008 - 11:17 AM

35.35 is the answer..based on the difference between subsequent nums n its reversal appearing to be the difference..

12.1
4.7

7. 4

13.22
12.1

1.12


35.35
13.22

22.13
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#12 abhisk

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Posted 29 April 2008 - 03:44 AM

Good Puzzle!
Spoiler for Solution

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#13 akaslickster

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Posted 29 April 2008 - 06:04 AM

Spoiler for ok, try

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Posted ImageThe place where peace begins is within oneself. by Slick

#14 WOLVERINERT68

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Posted 30 May 2008 - 02:47 PM

The answer is 35.35

If you wrote the numbers down correctly, then the solution is simply to add each number to itself, only you reverse the numbers on each side of the decimal. For example: 4.7 + 7.4 = 12.1

This would mean the sequence would go like this: 4.7 12.1 13.22 35.35 (which is 13.22 + 22.13).

You're welcome B)

ACTUALLY YOU ARE QUITE WRONG AS 12.1 REVERSED IS 1.21 WHICH 1.21 + 12.1 = 13.31 NOT 13.22 WHICH MAKES THIS ANSWER IMPOSSIBLE. SORRY FOR THE YELLING I AM AT WORK AND NEED TO TYPE IN CAPS. I DO NOT HAVE AN ANSWER MYSELF BUT DID NOTICE THIS ERROR.
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#15 S-In

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Posted 07 June 2008 - 09:35 AM

a friend sent me this puzzle, and it has me stumped.

what comes next? 4.7 12.1 13.22

thanks for your help!


4.7 + 7.4 = 12.1

12.1 + 1.12 = 13.22

13.22 + 22.13 = 35.35

Simply switch over the numbers from each side of the decimal and add respectively. The answer is 35.35.
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#16 pgreen1911

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Posted 13 June 2008 - 05:30 AM

It does seem that, in fact, you reverse the numbers for each side of the decimal. So, it would not be 35.35, rather 35.53.

no if it were your way the number after 12.1 would be 13.31
the other guy is right
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#17 woon

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Posted 13 June 2008 - 10:14 AM

Spoiler for Explanation

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#18 DucktapeFairy

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Posted 20 September 2010 - 05:50 AM

ACTUALLY YOU ARE QUITE WRONG AS 12.1 REVERSED IS 1.21 WHICH 1.21 + 12.1 = 13.31 NOT 13.22 WHICH MAKES THIS ANSWER IMPOSSIBLE. SORRY FOR THE YELLING I AM AT WORK AND NEED TO TYPE IN CAPS. I DO NOT HAVE AN ANSWER MYSELF BUT DID NOTICE THIS ERROR.


It's not an error. The answer is what it is, it just may be that the wording to the solution is troubling you. The answer is simply that the digits on the left side of the decimal point switch places with the digits on the right side -- without the digits themselves changing position. Therefore, 4.7 + 7.4 = 12.1; 12.1 + 1.12 = 13.22, and 13.22 + 22.13 = 35.35, and 35.35 + 35.35 = 70.70. (Nice that they end up being the same!)


P.S. What kind of job do you have that you can't undo the Caps Lock button? My curiosity is now piqued. :-)
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