Question

Value of a silver coin varies directly as a square of its diameter

Answer 1

Step-by-step explanation:

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Answer 2

The ratio of the thickness of the coins is 9:4.

Diameter of the silver coins = 4:3 ( Given)

Let the value of silver coins be = V

Let the diameter of silver coins be = D

Let the thickness of silver coins be = T

Therefore,

V = D²T

V1 = 16T1

V2 = 9T2

Here, V1 = 4V = 16T1  = 36T2

T1/T2 = 36/16

= 9/4

Thus, the ratio of the thickness is 9:4.