The mean of 11 obervation is 50. If the mean of first Six observation is 49 and that of last six observation is 52, then find sixth observation.

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

The mean of 35 observations is 20. If the mean of the first 18 observations is 16 and that of last 18 observations is 24, find the 18th observation.

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 a)28 b)31 c)43 d)37

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 average of 11 observations is 60. If the average of first five observations is 58 and that of the last five is 56, then the sixth observation is

The Arithmetic Mean of 13 observations is 14. If the Mean of 1st seven observations is 12 and that of last seven observations is 16, the 7th observation is-

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 10 observations is 12. If mean of first 6 observations is 13. Find the mean of remaining 4 observations.