সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
Father's age is 4 times his son's age now. 20 years from now son's age will be half of his father's age. What is difference in years of the present ages of father & son?
Father's age is 4 times his son's age now. 20 years from now son's age will be half of his father's age. What is difference in years of the present ages of father & son?
- ক. 30
- খ. 40
- গ. 20
- ঘ. 25
সঠিক উত্তরঃ 30
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