সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
What is the thikness of a pipe that has an outer diameter of 2.5 inches and inner diameter of 2.1 inches?
What is the thikness of a pipe that has an outer diameter of 2.5 inches and inner diameter of 2.1 inches?
- ক. 0.2 inches
- খ. 0.4 inches
- গ. 2.3 inches
- ঘ. 0.3 inches
সঠিক উত্তরঃ 0.2 inches
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