一三零 说有一个人, 第一次考试score是 16 out of 20, =80 第二次是 18out of 20. =90 问 to the nearest tenth , 第二次考试比第一次考试score多多少个percent 选项有,什么1%还有11.1%还有12.5%.其余忘了. GOOGLE搜来的:What grade would a 16 out of 20 be? It would be 80. You missed 20% of the 20 questions: you missed 4 questions. 所以 (90-80)/80=12.5%