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题库 > 数学DS > 题目dci36k
A certain zoo has mammals and reptiles and birds, and no other animals. The ratio of mammals to reptiles to birds is 11:8:5. How many birds are in the zoo?

Statement #1: there are twelve more mammals in the zoo than there are reptiles

Statement #2: if the zoo acquired 16 more mammals, the ratio of mammals to birds would be 3:1
  • AStatement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.
  • BStatement 2 ALONE is sufficient to answer the question, but statement 1 alone is NOT sufficient.
  • CBOTH statements 1 and 2 TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient.
  • DEach statement ALONE is sufficient to answer the question
  • EStatement 1 and 2 TOGETHER are NOT sufficient to answer the question.
显示答案
正确答案: D

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