The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 1…

A cricketer whose bowling average is 12.4 runs per wicket takes 5 wickets for 26 runs and thereby decreased his average …

The average expenditure of a man for the first five months of a year is Rs. 5000 and for the next seven months it is Rs.…

Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of …

The difference between two angles of a triangle is 24°. The average of the same two angles is 54°. Which one of …

The average age of 30 students in a class is 15 years. If 6 students of this class have the average age of 16 years, the…

16 children are to be divided into two groups A and B of 10 and 6 children. The average percent marks obtained by the ch…

The average age of 3 children in a family is 20% of the average age of the father and the eldest child. The total age of…