সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
If the sum of (8, 5 and x) is 21, then the average of (8, 5 and x) is--
If the sum of (8, 5 and x) is 21, then the average of (8, 5 and x) is--
- ক. 7
- খ. 9
- গ. 2
- ঘ. 3.5
সঠিক উত্তরঃ 7
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- Average weight of 8 persons is 120 lb. One person leaves the group and a new person comes in and the new average is 122 lb. If the weight of the outgoing person is 110 lb, then what is the weight of the incoming person?
- 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 7. If 2 of the numbers are zero, then what if the 3rd number?
- The addition of 10 digits is 462. The average of their first four digits is 52 and the average of last 5 digits is 38. What is the fifth digit?
- 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?
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