Double the problem.
In the primary school mathematics stage, 1 time and 2 times are completely different concepts. For example, if a number is 10, its 1 degree is 10, and its second degree is 20. What many people say is wrong! I totally agree with whwfjp. I earn 1 times as much as you. He wants to show that he earns 1 times more than you. For example, if you earn 100, he earns 200. If his income is twice that of you, then his income is three times that of you, that is, 300 yuan. It seems that the math class in primary school (grade two) has to be made up.