Solve the Math Puzzle: 66+935+1389

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  • Thread starter Dai
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In summary, the conversation discussed a mathematical problem involving matrices and decimal values. The solution involved setting a variable to a specific value and calculating the remaining values. The conversation ended with the OP requesting for the solution to be posted at a specific time.
  • #1
Dai
2
0
If
28+453+9012=81.534
91+712+1024=49.091
Then
66+935+1389=?
 
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  • #2
Let
\(\displaystyle \left [ \begin{matrix} a & b & c \\ a & b & c \end{matrix} \right ] ~ \left [ \begin{matrix} 28 & 91 \\ 453 & 712 \\ 9012 & 1024 \end{matrix} \right ] = \left [ \begin{matrix} 81.534 \\ 49.091 \end{matrix} \right ] \)

Letting a = 1 gives b = -0.07265695 and c = 0.009592496.

Thus
\(\displaystyle \left [ \begin{matrix} a & b & c \end{matrix} \right ] ~ \left [ \begin{matrix} 66 \\ 935 \\ 1389 \end{matrix} \right ] = 11.389770769\)

But you probably didn't mean that. (Tongueout)

-Dan
 
  • #3
Nope :)
But nice try tho
 
  • #4
The decimal values...do you have an exact expression for them or is your answer also going to be in decimal form?

And hey! It works!

-Dan
 
  • #5
topsquark said:
\(\displaystyle \left [ \begin{matrix} a & b & c \\ a & b & c \end{matrix} \right ] ~ \left [ \begin{matrix} 28 & 91 \\ 453 & 712 \\ 9012 & 1024 \end{matrix} \right ] = \left [ \begin{matrix} 81.534 \\ 49.091 \end{matrix} \right ] \)
My argument has been made, but I made a ghastly error in the way I wrote it. I am posting to correct this. I meant to say
\(\displaystyle \left [ \begin{matrix} a & b & c \end{matrix} \right ] ~ \left [ \begin{matrix} 28 & 91 \\ 453 & 712 \\ 9012 & 1024 \end{matrix} \right ] = \left [ \begin{matrix} 81.534 & 49.091 \end{matrix} \right ] \)

-Dan
 
  • #6
Sooooooo... What's the solution? (Yes, I'm impatient! (Time) )

-Dan
 
  • #7
topsquark said:
Sooooooo... What's the solution? (Yes, I'm impatient! (Time) )

-Dan

Dan, in 10 hours it will have been a week...so at that time the OP should feel free to post their solution. (Yes)
 

FAQ: Solve the Math Puzzle: 66+935+1389

What is the answer to the math puzzle "66+935+1389"?

The answer to this math puzzle is 2,390.

How do I solve the math puzzle "66+935+1389"?

To solve this math puzzle, you can use the standard order of operations (PEMDAS), which states that you should first solve the parentheses, then exponents, then multiplication and division (from left to right), and finally addition and subtraction (from left to right). In this case, there are no parentheses or exponents, so we can simply add the numbers from left to right, giving us 66+935 = 1,001, and then adding 1,001 to 1,389 to get the final answer of 2,390.

What is the significance of the numbers used in the math puzzle "66+935+1389"?

These numbers are simply chosen to make the math puzzle challenging and interesting. The numbers 66, 935, and 1389 have no special significance to the solution of the puzzle.

Are there any alternate ways to solve the math puzzle "66+935+1389"?

Yes, there are multiple ways to solve this math puzzle. For example, you could first add 935 and 1,389 to get 2,324, and then add 66 to get the final answer of 2,390. Another option would be to add 66 and 1,389 first, and then add 935 to get the same answer of 2,390.

Can I use a calculator to solve the math puzzle "66+935+1389"?

Yes, you can use a calculator to solve this math puzzle. However, it is recommended to practice mental math skills by solving the puzzle without a calculator as well.

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