GMAT 考满分题库

- 数学PS -
A is 1% saline solution and B is 3% saline solution. How much B solution needs to be mixed with 200g A solution to get 2.5% saline solution?
  • A250
  • B300
  • C400
  • D500
  • E600
显示答案
正确答案: E

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