If the charge of staying in a student youth hostel $18.00/day for the first week, and $12.00/day for each additional week, How much does it cost to stay for 23 days?  Choose the correct choice from the following choices.
A) $ 318  B) $ 289  C) $ 282  D) $ 274  E) $ 286

Rationale: total number of days of stay = 23 charge of staying in first week = 18 * 7 = 126 $ charge of staying for additional days = ( 23 - 7 ) * 12 = 16 * 12 = 192 $ total charge = 126 + 192 = 318 $ answer a
Answer: A