GMAT 考满分题库

Magoosh - 数学PS - 345
At a certain farm the ratio of pigs to cows to chickens is 7:8:10. If the total number of pigs, cows and chickens is 300, how many chickens are there?
  • A30
  • B90
  • C120
  • D180
  • E200
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正确答案: C

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