各位大虾请教一道英语数学题SAT if n is a two-digit number whose units digit is 4 times its tens
if n is a two-digit number whose units digit is 4 times its tens digit,which of the following statements must be true?
A.n is a multiple of 4
B.n is a multiple of 7
C.10
D.n is greater than 40
E.20
SAT 学霸更好了.是2011年1月真题SECTION8 的第10题.