Question : The average of the marks of 17 students in an examination was calculated as 71. However, it was later found that the mark of one student had been wrongly entered as 65 instead of 56 and another as 24 instead of 50. The correct average is:

Question : The average score of 40 students in an examination was 25. It was later found that the marks of one student had been wrongly entered as 73 instead of 37. What is the value of the correct average?

Question : The average of nine observations was found to be 35. Later on, it was detected that observation 81 was misread as 18. The correct average of the observations is:

Question : The average of 36 numbers was found to be 45. Later, it was detected that 84 was misread as 48. Find the correct average of the given numbers.

Question : The average of 100 items was found to be 30. If, at the time of calculation, two items were wrongly taken as 32 and 12 instead of 23 and 11, then the correct average is: