Question

Find the mean of all factors of 10.

Answer 1

 All factors of 10 are - 1, 2, 5,10

 ∴ Mean  = `"Sum of factors"/"Total factors"`

                = `(1+ 2 + 5 +10)/4`

                =`18/4`
                =`9/2`
                = 4.5

               ∴ Mean = 4.5