Bank Math Master১টি পরীক্ষায় এসেছেপ্রশ্ন ৩A 42-liter mixture contains milk and water in a 3 : 4 ratio. How much milk should be added to the mixture to make the ratio equal?ক7 litersখ4 litersগ6 litersঘ8 litersউত্তর দেখুন