At what price must an Book costing $47.50 be marked in order that after deducting 12% from the list price. It may be sold at a profit of 25% on the cost price?
Choose the most appropriate option: A) 72.5 B) 55.5 C) 67.5 D) 82.5 E) 60.5

Rationale: "c $ 62.50 cp = 47.50 sp = 47.50 * ( 125 / 100 ) = 59.375 mp * ( 88 / 100 ) = 59.375 mp = 67.5 c"
Answer: C