Re: [句填] Far from underming the impression ...
※ 引述《angeldas (趴趴)》之銘言：
: If the number of microbes in a test tube increases by 25% per day, how many
: microbes are there in the test tube at the end of a given day if the number
: of microbes at the end of the next day is 240,000?
: Ans.192,000
今日數量*1.25=明日數量
the number on given day*1.25=the number on the nex day
X*1.25=240000
: The scores reported for a certain multiple-choice test were derived by
: subtracing 1/3 of the number of wrong answerss from the number of right
: answers. On a 40-question test, if none of the questions was omitted and the
: score reported was 20, how many wrong answers were there?
: Ans. 15
設錯了x題
得分=對的題數-錯的題數* 1/3
20=(40-x)-x* 1/3
x=15
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