সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
A mixture of 20 kg of sprit and water contains 10% water. How much water must be added to this mixture to rais the percentage of water to 25%?
A mixture of 20 kg of sprit and water contains 10% water. How much water must be added to this mixture to rais the percentage of water to 25%?
- ক. 4
- খ. 5
- গ. 8
- ঘ. 30
সঠিক উত্তরঃ 4
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- From a container having pure milk 20% replaced by water and the pricess is repeated thrice. At the end of the third operation the milk is--
- There were twice as many girls as boys in a class. If 30% of the girls and 45% of the boys have already handed over their reports, what percent of the students have not yet done so?
- What is 1 percent of 0.025?
- A reduction of 21% in the price of wheat enables a person to buy 10.5 kg more for Tk.100. What is the reduced price per kg?
- The length and breadth of a square are increased by 30% and 20% respectively. The area of the rectangle. So formed exceeds the area of the square by--
There are no comments yet.