If you are preparing for General and Competitive Examination you practice math's question of Average Topic from here.
Some of important questions are here :
1. The average age of a group going to a picnic is 16 yrs. When 20 new people with average age 15 Years also join the picnic, the average age of the group becomes 15.5. What was the number of people who were going to picnic initially ? (20)
2. The average of 4 numbers is 60. If the first number is one fourth of the sum of last three numbers, then what is the first number ? (48)
3. Average temperature of Monday, Tuesday, Wednesday and Thursday is 48°c. The average temperature of Tuesday, Wednesday, Thursday and Friday is 52°c. If temperature on Monday is 42°c then what is the temperature on Friday ? (58°c)
4. After scoring 87 run on his carrier's 21st game, a cricket player increases his average by 2 runs. Then what was his average before this game ? (45)
5. The average daily salary of 16 workers in a company is Rs 1500. If the average including the salary of a manager will be 1650, then what is Manager's salary ? (Rs 4050)
6. The average temperature of first 4 days of a week is 38.6°c and the average temperature of last 4 days of week is 40.3°c. If the average temperature of week was 39.1°c, what was the temperature on 4th day ? (41.9)
7. The average of 6 numbers is 7. If the average of 3 among them is 5, the what will be the average of remaining 3 numbers ? (9)
8. Sarad had an average of 64 marks in an examination. If he had obtained 8 and 12 marks more in science and math respectively then his average marks would have been 66. What is the total number of subjects did he attend in the examination ? (10)
9. A cricket player has an average of 5o runs in 40 matches. The difference between his highest score and lowest score is 172. If we remove those two innings, then the average of the remaining 38 matches will be 48 runs. What is his highest score ? (174)
10. In a family, the ages of father, mother, son and grandson are A,B,C and D respectively. A-B=3, B+C=78, C+D=33 and average age of a family is 34 years. Then what is the age difference between father and son ? (25 Years)
11. Average marks obtained in 7 subjects is 60. If the average marks of first 4 subjects is 63 and that of last four subjects is 55, then what is the 4th number ? (52)
12. A student has average score of N marks in 4 subjects. If she scores 20 marks more than ber average marks in her 5th subject, then what is her average marks in all 5 subjects ? (N+4)