Copper parts

The metallurgic company made three parts from the copper cast. The first consumed one-third of the casting, the second 2/3 of the rest, and the third weighed 18 kg. What is the weight of the original copper cast?

Final Answer:

x =  81 kg

Step-by-step explanation:

3x+32 (x3x)+18=x  x/3+2/3 (xx/3)+18=x  0.666667x=54  x=0.6666666754=81  x=81=81 kg



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