2. 外语
  3. There are 450 birds at a small zoo. The number of birds is 5 times the number of all the other animals combined. How many more b

There are 450 birds at a small zoo. The number of birds is 5 times the number of all the other animals combined. How many more b

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问题 There are 450 birds at a small zoo. The number of birds is 5 times the number of all the other animals combined. How many more birds are there than non-bird animals at the zoo?
选项 A、400
B、360
C、270
D、180
E、90
答案B
解析 If the 450 birds are 5 times the number of non-bird animals, then non-birds=450/5=90. 450-90=360 more birds than non-birds at the zoo.
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