Based on the fact that the iron ball of 80 pounds has 8 inches in diameter., the iron ball with 12 inches would weigh 120 pounds
The weight of the iron ball can be found by the formula:
= (Diameter of target iron ball x Weight of referrent iron ball) / Diameter of referent iron ball
Solving gives:
= (12 x 80) / 8
= 960 / 8
= 120 pounds
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