The answer to the questions
To find it directly
A = 2 pi r h
A is proportional to rh
factor 2
A is multiplied by 2 * 2 = 4
factor 3
3 * 3 =9
factor 5
5 * 5 = 25
factor 10
10 * 10 = 100
(b) the increase in A by factor x is x^2
c(20)^2 = 400
600 g
Explanation:
Since 1 kilogram =1000 grams
Therefore 3 grams= 3000 grams
Now divide it with 5 partners
3000 divided by 5=600 grams
Each person will get 600 grams of gold dust
