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P25 Answers to Math Classroom Workbooks in Primary Schools
Solution: It takes X days to complete the delivery.

Basis: tonnage shipped per day x days = total tonnage (certain)

160x 12=(600:3)X-3

200 x = 160 x 12- 13

X =9.6

A: Actually, the goods can be shipped within 9.6 days.

Please forgive me if there is any mistake!

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