Bunuel wrote:
A certain sales tax rate is $0.82 per $50. What is the rate, as a percent, which is thrice as much as the rate mentioned?
(A) 492%
(B) 49.2%
(C) 4.92%
(D) 1.23%
(E) 0.055%
Rate of interest of sales tax \(= \frac{0.82}{50}* 100 = 1.64\)%
Thrice Rate of interest \(= 3 * 1.64 = 4.92\)% . Answer (C)...







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