有4盆水,如果全部倒入桶内,需要3只小桶;有5大杯水,如果全部倒入盆内,能装满2盆。现有20大杯水,如果改用小桶来装,要准备多少只小桶?5I7i'L'f9@4}(z'm/o+k-Z*v
算式:提示+l;R;Z2t2v9|*F'_4I7d7F4Q,X*_8|5I7i'L'f9@4}(z'm/o+k-Z*v
答:要准备,};E.`4S,t'E9z.y7f2|2d-J2C3x只小桶。5I7i'L'f9@4}(z'm/o+k-Z*v