Expression of IdeasVery hardRecommendation supported by yearly costs
Expression of Ideas practice question
While researching a topic, a student has taken the following notes:
- The school's minibus needs either a repair or a replacement.
- The repair would cost $8,000 and is expected to keep the bus running for 2 more years.
- A replacement would cost $30,000 and is expected to last 10 years.
- A replacement would use 30% less fuel, saving about $1,200 a year.
The student wants to make a recommendation and support it with information from the notes. Which choice most effectively uses relevant information from the notes to accomplish this goal?
- A. The school should replace the minibus: spread over ten years the replacement costs about $3,000 a year before fuel savings of $1,200, against $4,000 a year for a repair that lasts only two.Correct
- B. The repair would cost $8,000.
- C. The school should repair the minibus, because $8,000 is much less than $30,000.
- D. The school should stop running a minibus altogether.
Answer: A. The school should replace the minibus: spread over ten years the replacement costs about $3,000 a year before fuel savings of $1,200, against $4,000 a year for a repair that lasts only two.
A recommendation supported by yearly costs computed from the notes: 30,000/10 − 1,200 against 8,000/2.
Why the other answers are wrong
- B. The repair would cost $8,000.
- A figure with no recommendation.
- C. The school should repair the minibus, because $8,000 is much less than $30,000.
- This compares up-front costs only, ignoring that the repair lasts two years and the replacement ten.
- D. The school should stop running a minibus altogether.
- Nothing in the notes supports giving up the bus.
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