The average of 25 observations is 13. It was later found that an observation 73 was wrongly entered as 48. The new avera…

The average of the squares of first ten natural numbers is-

The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then …

The average age of a family with 5 members is 28. If one of the 5 members of age 20 is excluded the average age of the f…

The average age of 30 students of a class is 14 years 4 months. After admission of 5 new students in the class the avera…

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

The average price of 10 books is Rs. 12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two b…

The average height of 35 girls in a class was calculated as 160 cm. It was later found that the height of one of the gir…