At what price must an Book costing $47.50 be marked in order that after deducting 15% from the list price. It may be sold at a profit of 25% on the cost price? Choose the most appropriate option
A) 72.85 B) 69.85 C) 62.85 D) 82.85 E) 60.85

Rationale: "c $ 62.50 cp = 47.50 sp = 47.50 * ( 125 / 100 ) = 59.375 mp * ( 85 / 100 ) = 59.375 mp = 69.85 b"
Answer: B