...one hundred 一千 one thousand 打字 typing / typewriting 7折 thirty percent off / 30% off 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 ninety **希望對題主有幫助** **請題主唔好移除...
Q1. Let amount of 1st solution = x Then amount of 2nd solution = 100 - x Amount of chlorine in 1st solution = 40%x = 0.4x Amount of chlorine in 2nd solution = 65%(100 - x) = 0.65(100 - x) Total amount of chlorine = 0.4x + 0.65(100 - x) which is required to be 55% of 100...
Fifty percent of the marks for all subjects in the HKCE and...be based on the students' course-work in school. 50 %會考 同 A-level 的分數 應由平時學校成績計算在內 ...