题目信息
The ratio of two positive numbers is 3 to 4. If k is added to each number the new ratio will be 4 to 5, and the sum of the numbers will be 117. What is the value of k?
A:1
B:13
C:14
D:18
E:21
参考答案及共享解析

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已选答案:
正确答案:
B:13
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题目来源
Magoosh