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banksy
A certain company reported that the revenue on sales increased 40 % from 2000 to 2003, and increased 80 % from 2000 to 2005. What was the approximate percent increase in revenue for this store from 2003 to 2005?

(A) 50 %
(B) 40 %
(C) 35 %
(D) 32 %
(E) 29 %

We can let the sales in 2000 = x. Thus, sales in 2003 are 1.4x and sales in 2005 are 1.8x. Let’s now calculate the percentage increase from 2003 to 2005:

(1.8x - 1.4x)/1.4x = 0.4/1.4 = 4/14 = 0.285 x 100% ≈ 29%

Answer: E
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