Expression of IdeasHardSynthesis: a longer route that costs less
Expression of Ideas practice question
While researching a topic, a student has taken the following notes:
- Route A is 40 kilometres, takes 45 minutes, and has a 5-dollar toll.
- Route B is 55 kilometres, takes 40 minutes, and has no toll.
- Fuel costs 15 cents per kilometre.
The student wants to argue that Route B is cheaper despite being longer. Which choice most effectively uses relevant information from the notes to accomplish this goal?
- A. Route B costs 8.25 dollars in fuel and nothing in tolls, while Route A costs 6 dollars in fuel plus a 5-dollar toll, 11 dollars in all.Correct
- B. Route B is 15 kilometres longer than Route A.
- C. Route A has a 5-dollar toll.
- D. Route B takes 40 minutes.
Answer: A. Route B costs 8.25 dollars in fuel and nothing in tolls, while Route A costs 6 dollars in fuel plus a 5-dollar toll, 11 dollars in all.
Fuel plus toll, both routes.
Why the other answers are wrong
- B. Route B is 15 kilometres longer than Route A.
- A point against B.
- C. Route A has a 5-dollar toll.
- Half the comparison.
- D. Route B takes 40 minutes.
- Time, not cost.
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