Experienced 2703
The customer wants to buy 300 meters of wire with d = 4mm. An experienced salesman knows that 100 meters of wire are about 10 kilograms, so he weighs 30 kilograms of wire. Find out how many meters of wire are in a bundle of wire weighing 30 kilograms (or there will be about 300 meters) if one cubic meter of wire weighs 7800 kilograms.
Final Answer:

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You need to know the following knowledge to solve this word math problem:
solid geometryUnits of physical quantitiesGrade of the word problem
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