Q1. The average of all odd numbers upto 200 is

Q2. 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

Q3. A school has 4 sections of Chemistry in Class X having 40 35 45 and 42 students The mean marks obtained in Chemistry test are 50 60 55 and 45 respectively for the 4 sections Determine the over all average of marks per student

Q4. The sum of two consecutive even integers is n What is the sum of two immediate consecutive integers greater than n

Q5. Of the four numbers whose average is 60 the first is 1 4th of the sum of the last three The first number is