The mean is calculated by adding all the values and then dividing by how many numbers there were
We know the mean is 10 and there were 5 values
10 x 5 = 50
We now know the numbers must add up to 50 and have a range of 10 (the difference between the largest and smallest number
Examples of 5 numbers
6, 7, 10, 11, 16
5, 7, 10, 13, 15
4, 7, 11, 14, 14