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Mathematics answers for learning and evaluating the new curriculum in the second volume of the sixth grade
Solution: Let the total number be X, the first day (40%x) and the second day (40%x+60).

40%x=x-(40%x+60)

0.4x=0.6x-60

0.6x-0.4x=60

x=300

This pile of goods is 300 tons.

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