Average of ten positive numbers is $\bar{x}$. If each number is increased by 10%, then $\bar{x}$. A. Remains unchanged B.…

The average marks in Science subject of a class of 20 students is 68. If the marks of two students…

A pupil’s marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class…

The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of…

The average temperature of the town in the first four days of month was 58 degrees. The average for the…

The average weight of 8 men is increased by 1.5 kg when one of the men, who weight 65 kg…

When 15 is included in a list of natural numbers, their mean is increased by 2. When 1 is included…

A batsman makes a score of 84 runs in the 21st inning and thus increases his average by 2 runs.…

A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If had scored 92…

The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and…