Bunuel
A traveler has booked a vacation plan with agent X for a total cost of $1,200 and has already paid agent X a nonrefundable deposit equal to 10% of the cost of the vacation plan. She learns that she can purchase the same vacation plan from agent Y for 20% less. If these are the only costs involved, what will be the net result of breaking the contract with agent X, thereby forfeiting the deposit, and then purchasing the plan through agent Y ?
(A) An increase in the cost of the vacation of $240
(B) An increase in the cost of the vacation of $120
(C) No change in the cost of the vacation
(D) A decrease in the cost of the vacation of $120
(E) A decrease in the cost of the vacation of $240
We'll first break this extremely wordy problem into bits so we understand what we need to do.
This is a Precise approach.
total cost with X = $1200
already paid = 10% * 1200 = $120
total cost with Y = 80% * 1200 = $960
cost to break contract = already paid + cost with Y = 120 + 960 = $1080
Therefore (D) is our answer.
The Logical approach to this would be to say that instead of paying 100% we are paying 10% + 80% = 90%.
Meaning a decrease of 10%, or $120.
But since the question is so long, it is often more helpful to break it down into bits then to look for an underlying logic.