he average of 11 observations is 60. If the average of first five observations is 58 and that of the last five is 56, the sixth observation is:Options :9011085100

The mean of 25 observations is 36. Out of these observations if the mean of first 13 observations is 32 and that of the last 13 observations is 40, the 13th observation is

The average of 18 observations is recorded as 124. Later it was found that two observations with values 64 and 28 were entered wrongly as 46 and 82. Find the correct average of the 18 observations?Options137122111.7777778123

The average of five results is 46 and that of the first four is 45. The fifth result is:Options :11012.550

The mean of 100 observations was calculated as 69. It was found later on that one of the observations was misread as 92 instead of 67. The correct mean is: Options :69.2568.2567.75none of these

The average of six numbers is 48. If the average of first four is 28 and that of last three is 41, the fourth number is: Options :475149none of these