Que: In a toy shop if a toy car attracts a sales tax rate of $2.50 per $50. What is the sales tax rate......

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Que: In a toy shop if a toy car attracts a sales tax rate of $2.50 per $50. What is the sales tax rate, as a percent, for a robot car that attracts 4 times as much as the rate for a robot car?

(A) 0.1%
(B) 0.2%
(C) 2%
(D) 20%
(E) 200%

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Solution: Tax paid on $50 = $2.50.

Thus, a tax, which is four times as much as the above, would be $(2.50 × 4) = $10.00 on $50.

Thus, the tax rate = \(\ \frac{10}{50}=0.2\)

Thus, this tax, expressed as a percentage = \(0.2=100\cdot\ \frac{2}{10}=20\%\)

Therefore, D is the correct answer.

Answer D