mary is12 years old .she was twice as old as his brother, ,john how old was mary when john was born的意思

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mary is12 years old .she was twice as old as his brother, ,john how old was mary when john was born的意思

mary is12 years old .she was twice as old as his brother, ,john how old was mary when john was born的意思
mary is12 years old .she was twice as old as his brother, ,john how old was mary when john was born
的意思

mary is12 years old .she was twice as old as his brother, ,john how old was mary when john was born的意思
mary 12岁了.她有她的弟弟john的两倍大,当john 出生的时候mary 有多大?
满意的话采纳一下 谢谢

玛丽12岁,她是她弟弟--约翰年龄的两倍。约翰出生的时候,玛丽几岁。
答案是6岁。约翰现在6岁。玛丽比他大六岁。

玛丽12岁,她的年龄是她弟弟约翰的两倍。约翰出生的时候,玛丽几岁?
Answer: Mary was 6 when John was born.
(Mary 今年6岁,John 今年6岁,所以12-6=6,John 出生的时候,Mary 6岁)