সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtained by all students?
The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtained by all students?
- ক. 10
- খ. 8
- গ. 12
- ঘ. 15
সঠিক উত্তরঃ 12
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- The average age of 40 employees in abranch of a bank is 35 years. When a new employee joined the bank the average age increased to 35.5 years. What is the age of the new employee?
- If the arithmetic mean of sevety five numbers is calculated, it is 35. If each number is increased by 5, then mean of new numbers is:
- The average of 6, 8 and 10 equals the average of 7, 9 and --
- In a group of four people the height of the group members are 5 feet 4 inches, 5 feet, 5 feet 6 inches and 4 feet 10 inches. The average height of the group members is:
- The average of three numbers is V. If one of the numbers is Z and another is Y, then what is the remaining number?
There are no comments yet.