সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
72% of the students of a certain class took Biology and 44% took mathematics. If each students took Biology or Mathematics or both. If 40 students took both Biology and Mathematics then the total number of students in the class was---
72% of the students of a certain class took Biology and 44% took mathematics. If each students took Biology or Mathematics or both. If 40 students took both Biology and Mathematics then the total number of students in the class was---
- ক. 250
- খ. 320
- গ. 200
- ঘ. 240
সঠিক উত্তরঃ 250
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--
- In a university, 80 percent of the students lived in hostel and 60 percent of the hostel students are lucky to get a single room. If number of lucky students is 1200, then how many students were there in the university?
- If a man’s salary is 20% more than that of his son, how many percent is the son’s salary if compared to the salary of his father?
- Alamgir spends 30% of his income on scooter petrol. 1/4 of the remaining on house rent and the balance on food. If he spends Tk.300 on petrol then what is the expenditure on house rent?
- From 2004 to 2005 the sales of a book decreased by 80%. If the sales in 2006 were the same as in 2004, by what percent did they increase from 2005 to 2006?
There are no comments yet.