My brother is two years younger than I.My sister is four years younger than my brother.My mother waMy brother is two years younger than I.My sister is four years younger than my brother.My mother was 20 years old when I was born. In this year the ave

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My brother is two years younger than I.My sister is four years younger than my brother.My mother waMy brother is two years younger than I.My sister is four years younger than my brother.My mother was 20 years old when I was born. In this year the ave
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My brother is two years younger than I.My sister is four years younger than my brother.My mother waMy brother is two years younger than I.My sister is four years younger than my brother.My mother was 20 years old when I was born. In this year the ave
My brother is two years younger than I.My sister is four years younger than my brother.My mother wa
My brother is two years younger than I.My sister is four years younger than my brother.My mother was 20 years old when I was born. In this year the average age of our four is 38.Can you tell me how old each of us four is?

My brother is two years younger than I.My sister is four years younger than my brother.My mother waMy brother is two years younger than I.My sister is four years younger than my brother.My mother was 20 years old when I was born. In this year the ave
平均年龄38,弟弟比我小2岁,妹妹比弟弟小4岁,即比我小6岁,妈妈比我大20岁.你可以设我的年龄为x,结果为35.弟弟33岁,妹妹29岁,妈妈55岁.
行吗?