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Finding mid-point
Hello, The basic formula to find the mid-point is (x+y)/2 right? This does not fit well while we find the mid-point between 1 and 100. I know it should be 50 but when I plug in the values I get 50.5 This might be the time I really need to recall my high school stuff. Hint or answer is appreciated. Thanks.
3 Réponses
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It gets 50.5 because this really is the mid-point between 1 and 100.
x - 1 = 100 - x ==> x = (100+1)/2 ==> x = 50.5
50 is a mid-point or the average of 0 and 100.
x - 0 = 100 - x ==> x = 100/2 ==> x = 50
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Yep, thanks for spotting the obvious mistake, already corrected.
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I just read this and said to myself "i should know this". thank you two :)
just one question to Kuba - I think I didn't underatand the equation. isn't 1+x = 100 - x ==> x=99/2?