SOLUTION: Take any number. Add 10, multiply by 2, add 100, divide by 2 and subtract the original number. The answer will be the number of minutes in a hour. Why?

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Question 12498: Take any number. Add 10, multiply by 2, add 100, divide by 2 and subtract the original number. The answer will be the number of minutes in a hour. Why?
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
This is easy to see when you write down the algebraic expression.
Let the number be x.
%28%282%28x+%2B+10%29+%2B+100%29%2F2%29+-+x Simplify.
%282%28x+%2B+10+%2B+50%29%2F2%29+-+x
x+%2B+10+%2B+50+-+x
10+%2B+50+=+60 So you always get 60, the number of minutes in an hour.