Three cylinders from the same mix were tested

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Three cylinders from the same mix were tested for strenght.  Cylinders A and B were cast in 4x8 molds while cylinder C was cast in a 6x12 mold.  The total loads were as follows; cylinder A= 65,200 lbs.,  cylinder B= 68,550 lbs., cylinder C= 151,190 lbs.  Determine the average P.S.I for this mix?

Reference no: EM13532248

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