Question

calculate the mean of all possible factors of 10

Answer 1

Find the factors of 10

10 = 1 x 10

10 = 2 x 5

Factors of 10 are 1, 2, 5 and 10

Find the sum:

Sum of the factors of 10 = 1 + 2 + 5 + 10 = 18

Find the mean:

Mean of the factors = 18 ÷ 4 = 4.5

Answer: Mean = 4.5

Answer 2

Factors of 10 = 1, 2, 5, 10

∴ Mean = ( 1 + 2 + 5 + 10 ) / 4

         = 18 / 4

         = 4.5

∴ The  mean  of  all  possible  factors  of  10  is  4.5