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

If the mean of 15 observations is 16, find the sum of the 15 observations.

The mean of 5 observations is 8 , Find the sum of the 5 observations.

If the mean of 12 observations is 9, find the sum of the 12 observations.

If the mean of 10 observations is 15, then the sum of these observations is

If the mean of n observations is 12 and the sum of the observations is 132, then find the value of n.

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 a data is 15 and the sum of the observations is 195. Find the number of observations in the data.

If the sum of mode and mean of certain observations is 129 and the median of the observations is 63, then find mode and mean.