甲:
30*2%=60%
60%/4%=15(kg) 30-15=15(kg)
乙:
60%/5%=12(kg) 30-12=18(kg)
丙:
60%/6%=10(kg) 30-10=20(kg)
答:用甲,取15千克,加水15千克;用乙,取12千克,加水18千克;用丙,取10千克,加水20千克.
甲:
30*2%=60%
60%/4%=15(kg) 30-15=15(kg)
乙:
60%/5%=12(kg) 30-12=18(kg)
丙:
60%/6%=10(kg) 30-10=20(kg)
答:用甲,取15千克,加水15千克;用乙,取12千克,加水18千克;用丙,取10千克,加水20千克.