The average weight of Sudesh, Jyothi and Ritu is 89 kg. If the average weight of Sudesh and Jyothi be 98 kg and that of Jyothi and Ritu be 83 kg, then the weight of Jyothi is

The average salary, per head, of all the workers of an institution, is Rs. 60. The average salary of 12 officers is Rs. 400; the average salary, per head, of the rest is Rs. 56. The total number of workers in the in situation is 

Directions: Given table shows the data of population in 5 different parks. Study the data carefully and answer the questions.

If 30 females from each park are above 80 years age then find the average of no. of females who are below or equal to the age of 80 years from all the parks.

The average of eleven numbers is 68. The average of the first numbers is 78 and that of the next four number is 63. The 9^th number is two time the 11^th number and the 10^th number is 4 less than the 11^th number. What is the average of the 9^th and 11^th numbers?

The average of the squares of first ten natural numbers is 

16 children are to be divided into two group A and B consisting of 10 and 6 children. The average percent marks obtained by the children of Group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of Group B?

In a certain year, the average monthly income of a person was Rs.3,400. For the first eight months of the years, his average monthly income was Rs. 3,160 and for the last five months, it was Rs.4,120. His income in the eighth month of the year was: 

The average of three consecutive odd numbers is 12 more than one third of the first of these numbers. What is the last of the three numbers?