Question

英语高手？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?

Answer 1

Jane's father is 3.2 times as old as Jane. While her mother is 2.6 times as old as Jane As is known that her father is 9 years older than her mother,how old is Jane

Answer 2

4 / 12

4+4 / 12+4

Mark will be sixteen when he is twice as old as Jane

Answer 3

twelve
eight