Posted by **Chelsy** on Tuesday, November 27, 2012 at 11:14am.

A multistoried building has a floor area of 2,000 square feet on the ground floor, 1,995 square feet on the 1st floor, 1,990 square feet on the 2nd floor, and so on. If the areas

of the higher floors follow this sequence, what is the expression to calculate the area of the nth floor?

An=(n-1)-5

An=2000-(n-1)

An=an-i-5

An=an-5

An=n-5

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