The average weight of 45 students in a class is 52 kg. Five of them whose average weight is 48 kg leave the class and ot…

The average of the first 100 positive integers is -

There are two sections A and B of a class, consisting of 36 and 44 students respectively. If the average weight of secti…

When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is …

The average age of 11 players of a cricket team decreases by 2 months when two new players are included in the team repl…

There are 30 students in a class. The average age of first 10 students is 12.5 years. The average age of the remaining 2…

Average of 80 numbers are 42. When 5 more numbers are included, the average of 85 numbers become 45. Find the average of…

The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new averag…