【数学题说出为啥?Juanmade2Loflemonadethatconsistsof40%purelemonjuice.Howmuchwatermustheaddtodiluteitto30%lemonjuiceA:1/3literB:1/2literC:2/3literD:1/1/3liters公式为2（0.4）=X（0.3）求出X并选出是几】
<p>问题：【数学题说出为啥?Juanmade2Loflemonadethatconsistsof40%purelemonjuice.Howmuchwatermustheaddtodiluteitto30%lemonjuiceA:1/3literB:1/2literC:2/3literD:1/1/3liters公式为2（0.4）=X（0.3）求出X并选出是几】<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">龚龙飞的回答：<div class="content-b">网友采纳 你设的x是总体积=8/3 要减去原体积8/3-2=2/3 或设加水为x 则2*0.4=（x+2）*0.3 x=2/3 选C
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