সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
The average age of three persons is 30 years. If the ratio of three ages is 3 : 5 : 7. What is the age of the youngest person?
The average age of three persons is 30 years. If the ratio of three ages is 3 : 5 : 7. What is the age of the youngest person?
- ক. 18 years
- খ. 8 years
- গ. 16 years
- ঘ. 42 years
সঠিক উত্তরঃ 18 years
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- Ten years ago, A was half of B in age. If the ratio of their present age is 3 : 4, what will be the total of their present ages?
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