Could someone please shine some light on this question, I'm not sure I fully understand how it's worded?
A range of metallic alloys are tested for electrical conductivity and give the following results for identically sized samples.
25% copper with 75% tin gave a reading of 0.0071 Ohms
65% copper with 35% cadmium gave a reading of 0.0049 Ohms
40% copper with 40% tin and 20% cadmium gave a reading of 0.0060 Ohms
Using matrix algebra, determine the resistance of an equally sized sample for each of the pure metals –