Range of a given observations is 17 and maximum value of observation is 38, then find the minimum value of observation

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

Range of a given observations is 13.4 and the value of the lowest observation is 12.3, then what will be the highest value of observation ?

The range of 12 observations is 60. If the least observation is 90, then find the greatest observation.

The mean of 25 observations is 36. The mean of first 13 observations is 32 and that of last 13 observations is 39. What is the value of 13^(th) observation ?

The mean of 5 observations is 3 and if one more observation is added, the mean becomes 3 . 5. Find out the value of new observation .

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

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: