ব্যাংক জব সল্যুশন১টি পরীক্ষায় এসেছেপ্রশ্ন ৪৫The average of a family of 6 members is 25 years. After a 45 year old member leaves the family, what is the average age (in years) of the family?কক) 22খখ) 21গগ) 20ঘঘ) 19উত্তর দেখুন