The charge for a single room at Hotel P is 50 percent less than the charge for a single room at Hotel R and 10 percent less than the charge for a single room at Hotel G. The charge for a single room at Hotel R is what percent greater than the charge for a single room at Hotel G?	Choose the correct choice from the following choices:
A) 45 %	B) 50 %	C) 60 %	D) 80 %	E) 90 %

Rationale: p = 0.5 r = 0.9 g r = 0.9 g / 0.5 = 1.8 * g thus r is 80 % greater than g . the answer is d .
Answer: D