SOLUTION: Tom and Jerry each order a pizza. The circumference of Tom�s pizza is 30% greater than the cir-cumference of Jerry�s pizza. The area of Tom�s pizza is what percentage greater than

Question 247148: Tom and Jerry each order a pizza. The circumference of Tom�s pizza is 30% greater than the cir-cumference of Jerry�s pizza. The area of Tom�s pizza is what percentage greater than the area of Jerry�s ?
(A)30% (B) 49% (C) 50% (D) 69% (E) 75%
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Tom and Jerry each order a pizza. The circumference of Tom�s pizza is 30% greater than the cir-cumference of Jerry�s pizza. The area of Tom�s pizza is what percentage greater than the area of Jerry�s ?
(A)30% (B) 49% (C) 50% (D) 69% (E) 75%
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Circumference and radius are directly related, so the radius is 1.3 times.
Area is a function of the square of the radius, so it's 1.69 times (1.3*1.3).
That's 69% greater.

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