Protectors
The nature protectors have pledged to clean the part of the stream that belongs to their municipality. On Saturday, they cleaned one quarter of the length of the entire stream, and on Sunday, 1.5 km, so they cleaned a stream 4 km long over the weekend. What is the length of the entire stream?
Correct answer:
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algebranumbersUnits of physical quantitiesGrade of the word problem
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