The average of 40 observations is 32. The average of the first 15 observations is 16, the average of the next 16 observations is...

The average of 10 observations is 14.4. If the average of first 4 observations is 16.5. The average of remaining 6 observations is:

The mean of 20 observations is 30. If the mean of first 15 observations is 32, find the mean of last 5 observations.

The mean of 25 observations is 36. If the mean of the first 13 observations is 32 and that of the last 13 observations is 39 then the 13^(th) observation is :

The mean of 9 observations is 36. If the mean of the first 5 observations is 32 and that of the last 5 observations is 39, then the fifth observation is

The mean of 9 observations is 36 .If the mean of the first 5 observations is 32 and that of the last 5 observations is 39 ,then the fifth observation is

Average of ‘n’ observations is 38, average of ‘n’ other observations is 42 and average ofremaining ‘n’ observations is 55. Average of all the observations is:

The average of 40 numbers is 36. The average of the first 25 numbers is 31 and the average of last 16 numbers is 43. Find the 25^(th) number

The means of 5 observations is 16. Find the sum of these observations.