The AM of n observations is M. If the sum of `n-4` observations is a, then the mean of remaining 4 observations is

The A.M. of n observation is X. If the sum of n-4 observation sis K, then the mean of remaining observations is

AM of n observations is M.If the sum of (n-5) observations is R, then mean of remaining 5 observations is

The mean of 12 observations is 75. If two observations are discarded, then the mean of the remaining observations is 65. What is the mean of the discarded observations?

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

If the sum of 10 observations is 95, then their mean is ______.

The mean of 50 observations is 36. If its two observations 30 and 42 are deleted,then the mean of the remaining observations is

If the mean of m observations out of n observations is n and the mean of remaining observations is m, then what is the mean of all n observations ?

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