Xiaofang typing 50 words per minute, Xiaoli typing 0.9 words per second, who typing fast?
Xiaoli! Xiaofang is 50 / 60 = 0.83, Xiaoli is 0.9, because 0.83 is less than 0.9, Xiaoli is fast. (it's hard to do it by herself, so, hehe)
Xiaoli! Xiaofang is 50 / 60 = 0.83, Xiaoli is 0.9, because 0.83 is less than 0.9, Xiaoli is fast. (it's hard to do it by herself, so, hehe)