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Old 2018-04-04, 22:25   #23
retina
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Quote:
Originally Posted by rudy235 View Post
I just wanted to make a comment as to the high quality of the reasoning in the individuals who have posted.

And let me do this by making a simple comparison.

Suppose for a brief moment this same puzzle is placed in a medium like Facebook.

First of all, 8n FB you would probably have five, six or more wrong answers before someone would put the correct one. 38 Here it was the second answer.

Second, nobody would agree or accept that what was posted *38* was the correct answer.

Third, after a lot of argument, the person that posted the correct answer -or someone else- who agreed with it would have to explain in detail HOW do they arrive at the result *38*

After that, several lines of defensive argumentation would evolve. Included but not limited to faulty math as to the order of precedence of arithmetic operations. Some would dismiss the whole puzzle as a gimmick and in general, no consensus would ever arrive.

On this forum, as it is evident, NONE has even asked how you arrive at 38. Everyone involved seems to agree that that is the CORRECT answer and none has thought (correctly) that there is any need to explain how you arrive at 38.

Nobody has insulted nobody either overtly or by implication and that is such a difference from what might have happened in FB.
I am sorry that we disappointed you. I guess we seem rather boring compared to FaceCrook.

[Hah, I insulted FarceBook by misspelling their name, finally some controversy for you ]
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Old 2018-04-05, 09:08   #24
LaurV
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50

(grrrr...)
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Old 2018-05-14, 22:53   #25
SmartMersenne
 
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Cool

For the sake of completeness & to avoid any confusion:

2 + 3 + 3*11 = 38

I guess it should be clear to why each value is what it is.
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Old 2018-05-23, 22:16   #26
ONeil
 
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Quote:
Originally Posted by a1call View Post
What is the result?
67
oops

3+4+4*15=67

multiplication first over addition!

Last fiddled with by ONeil on 2018-05-23 at 22:30
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Old 2018-05-23, 23:30   #27
a1call
 
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Quote:
Originally Posted by ONeil View Post
67
oops

3+4+4*15=67

multiplication first over addition!
You forgot to mention that your answer is in base 31/6.

20 in base 19 is also correct.
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Old 2018-05-24, 23:31   #28
SmartMersenne
 
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Quote:
Originally Posted by a1call View Post

Quote:
Originally Posted by ONeil View Post
67
oops

3+4+4*15=67

multiplication first over addition!
You forgot to mention that your answer is in base 31/6.

20 in base 19 is also correct.
My son (who is in 6th grade) found the answer in his second attempt. His first response was 88, because of doing the addition first
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Old 2018-05-25, 00:03   #29
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Quote:
Originally Posted by Dubslow View Post
Forget math, the hard part about this has nothing to do with math or arithmetic.
Not quite true there are 3 logic rules( a few other arithmetic ones as well) in use to get to 38 :
  1. nested shapes are equal to the number of points in the shapes summed
  2. number of bananas are their value
  3. hour hands on clocks point to the clocks value
  • bodmas
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