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1.
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. What is the average of the remaining two numbers?
2.
The average salary of the entire staff in a office is Rs 120 per month. The average salary of officers is Rs 460 and that of non officer is Rs 110. If the number of officer is 15, then find the number of non-officer in the office?
3.
Find the average of first 20 multiple of 7?
4.
The average of four consecutive ODD number is 28.Find the largest number.
5.
Find the average of first 60 natural numbers
6.
Find the average of 13+26+39+
7.
The average of five number is 42 ,if one number is excluded the average become 35.The excluded number is
8.
The average age of 30 students in a class is 20 years.The average age of 25 students is 15.What is the average age of remaining students
9.
The average of nine number is x and the average of three of these is y,if the average of the remaining three is z,then
10.
If a,b,c,d,e,f,g are seven consecutive odd number,their average is