2. 职称英语
  3. Kathy was twice as old as Jim 2 years ago. Today, Jim is / years old. In terms o

Kathy was twice as old as Jim 2 years ago. Today, Jim is / years old. In terms o

游客2024-01-12  3
问题 Kathy was twice as old as Jim 2 years ago. Today, Jim is / years old. In terms of/, how old was Kathy 2 years ago?
选项 A、2(j - 2)
B、2j/ - 2
C、2(j + 2)
D、j(2 + 2)
答案 2(j - 2)
解析 You are given that Jim is j years old today; therefore, 2 years ago Jim would have been j — 2 years old. At that time, Kathy was twice as old as Jim, or 2(j - 2).
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