Bank Math Master১টি পরীক্ষায় এসেছেপ্রশ্ন ১৭Sadman is younger than Miraj by 7 years. If their ages are in the respective ratio of 7 : 8, how old is Sadman?কক) 56 years খখ) 40 years গগ) 45 years ঘঘ) 49 years উত্তর দেখুন