A contractor is engaged for 30days on the condition thathe receives Rs.25 for each day he works &is fined Rs.7.50 for each day is absent. He gets Rs.360 in all. For how many days was he absent?	Select the correct option.
A) 8  B) 12  C) 15  D) 17  E) 19

Rationale: "30 * 25 = 750 360 - - - - - - - - - - - 380 25 + 7.50 = 32.5 390 / 32.5 = 12 b"
Answer: B