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Question 1
The average marks of 45 students is shown as 65. It includes a wrong entry of 84 marks instead of 48 marks. The correct average is:
Question 2
Five years ago, the average age of P and Q was 25. The average age of P, Q and R today is 25. Age of R after 5 years will be
Question 3
Average height of a class of 12 students is 180 cm. The average decreases to 179 cm when the height of the class teacher is also added. What is the height of the teacher?
Question 4
The average marks of 28 students in Mathematics were 50. If Eight students are excluded, the average increases by 5. What are the average marks obtained by the students who left the school?
Question 5
A batsman makes a score of 95 runs in the 13th match and thus increases his average runs per match by 4 What is his average after the 13th match?
Question 6
The average of 19 results is 111. If the average of first 10 results is 82 and that of the last 10 results is 129, then what will be the 10 result?
Question 7
The average of four consecutive odd numbers A, B, C and D respectively is 40. What is the product of B and D?
Question 8
The average of 5 members of a family is 26 years. If the youngest member is 6.8 years old, then find the average age of the family at the time of the birth of the youngest member?
Question 9
The average of 17 results is 60. If the average of first 9 results is 57 and that of the last 9 results is 65, then what will be the value of 9th result?
Question 10
10 persons went to take lunch in a hotel. 9 of them spent Rs 80 for their lunch but tenth person spent Rs 90 more than the average expenditure of all ten persons. What is the total expenditure of all 10 persons?
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Sep 19SSC & Railway
