সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
Nazir can wash his car 15 minures while his son takes twice as long. If they work together how many minutes will the job take them?
Nazir can wash his car 15 minures while his son takes twice as long. If they work together how many minutes will the job take them?
- ক. 5
- খ. 12
- গ. 10
- ঘ. 20
সঠিক উত্তরঃ 10
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