The arithmetic mean of the following numbers : 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6 and 7, 7, 7…

A cricketer has a mean score of 60 runs in 10 innings. Find out how many runs are to be scored in the eleventh innings t…

The average of odd numbers up to 100 is

The average daily income of 7 men, 11 women and 2 boys is Rs. 257.50. If the average daily income of the men is Rs. 10 m…

The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. The a…

There are 3 groups of students, each containing 25, 50 and 25 students respectively. The mean marks obtained by the firs…

The average expenditure of a man for the first five months Rs. 1200 and for the next seven months is Rs. 1300. If he sav…

The average age of four brothers is 12 years. If the age of their mother is also included, the average is increased by 5…