Question

the average of ten number is 5 if each divided by 3 the average set number will be
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Answer 1

Answer:

average = sum of observations / total observations

let sum of observations = x and total observations = 10

x/10 = 5

x = 5*10

x = 50

sum of observations = 50

let the numbers are x1, x2, x3.... x10

x1 + x2 + .... + x10 = 50

x1/3 + x2/3 + .... + x10/3 = 50/3

average = (50/3)/10

= 50*10/3 = 500/3