进、?1 Jane is four years old.Her brother is three times as old as Jane..

分类: 作业答案 • 2023-01-15 10:06:51

问题描述：

进、?1 Jane is four years old.Her brother is three times as old as Jane..
How old will Mark be when he is twice as old as Jane?

答

4 / 12
4+4 / 12+4
Mark will be sixteen when he is twice as old as Jane