সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
If 1/2 of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after four strockes?
If 1/2 of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after four strockes?
- ক. 15/16
- খ. 7/8
- গ. 1/4
- ঘ. 1/8
সঠিক উত্তরঃ 15/16
এ সম্পর্কিত আরো প্রশ্ন দেখুন
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