সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
In a school the ratio of boys to girls is 3 : 7. If there are 150 boys and girls in the school, how many boys are there?
In a school the ratio of boys to girls is 3 : 7. If there are 150 boys and girls in the school, how many boys are there?
- ক. 45
- খ. 75
- গ. 90
- ঘ. 105
সঠিক উত্তরঃ 45
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Ratio, Proportion and Partnership