SaraLotfy wrote:

The finishing process costs $92 per square meter. The surface area of the sphere is equal to 4pie r^2 where r is the radius of the sphere. Select the value which is closest to the cost of finishing a sphere with a 5.50meter circumference.

A) $1,200

B) $1,800

C) $2,800

D) $3,200

E) $4,500

I'm not sure about the OA

Hey Sara,

Do not ALTER the contents of the questions if you want to learn something at this place because it wastes others' time. (Suggestion)

http://www.manhattangmat.com/blog/index ... uestion-2/Here is the link, where the question is discussed in its original format.

Fame

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