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Hi Pete : It makes sense if we are

Hi Pete : It makes sense if we are

Hi Pete : It makes sense if we are

(OP)
Hi Pete :
It makes sense if we are calculating averages:
 
50C  =  122F
10C  =   50F  THEIR SUM:
-------------
60C  #   172F  BUT HALVE THEM, AND
30C  =    86F  Q.E.D
--------------------------------
BUT ALL SUMS GIVEN AS CHOICES ARE WRONG.
    

<nbucska@pcperipherals.com>

RE: Hi Pete : It makes sense if we are

You're right Nick. That is one possible physical interpretation of the "sum of temperatures" that I hadn't considered. I still think it is an ambiguousquestion without some explanation.

As I have mentioned above, 50C rise above 50F ambient gives a different answer than 50F rise above 50C ambient.

50F ambient + 50C*(9F/5C) rise =140F
50C ambient + 50F*(5C/9F) rise =77.8C=172F

RE: Hi Pete : It makes sense if we are

nbucska

The problem with your logic is that centigrade starts at 0 while the equivalent number in Fahrenheit starts at 32. If you modify your equations it would read.

50C  =  122F   =  90  normalized to zero
10C  =   50F   =  18  normalized to zero
--------------------- add them up
               = 108  normalized to zero
                 +32F add back in offset
                ----
60C  =           140F

divide by 2      108/2 = 56
                        +32F add back in offset
                       -----
30C  =                   86F

by adding and divding without taking into account the 32 they cancel each other out.

RE: Hi Pete : It makes sense if we are

(OP)
E.geek:

Yes, you found an  other way to skin a Felis Domesticus.

<nbucska@pcperipherals.com>

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