I posted this to compare times with individuals that possess intellects lightyears beyond my own. I clocked in at 16 mins for this answer.
I know my time will be overtaken by a time that's less than half of what it was.
But instead of getting too wrapped up into the idea of it happening. I want to be the first to witness how an IQ of 130, 140, 150, or 160 functions/processes information from my own intelligence.
Rules: No paper or notes, but a calculator is accepted.
Post the exact time min wise of how long it took.
And obviously give the answer.
Answer
Took one minute to solve.
This question has a reasonably easy solution if you can figure out the pattern in the the provided equations.
Look at the first row equation and the second column equation.
a+b=8
b+c=8Notice that there is a common variable in the equations (the intersection of the equations in the picture denotes the common variable.)
Thus we can rewrite the set of equations as:
a+b=8
c+b=8Subtracting these two equations can make us realize that a=c. Which means the top left box is equal to bottom right box.
The problem can be rewritten as
The values now seem fairly easy to compute.
a+c=13
c−a=6By adding the above equations, the variable c can be resolved. By evaluation of c and substituting into either of the above equations, variable a can be calculated. After which variable b can be calculated by substituting variable a in a+b=8.
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