16Hit1600
Expression of IdeasHardPresenting a benefit and a cost

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - A town replaced its roundabout with traffic lights. - Pedestrian crossings became safer: injuries fell by a third. - Average queue lengths at peak times doubled. - Bus journey times through the junction rose by four minutes.

The student wants to present both a benefit and a cost of the change. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. Pedestrian injuries at the junction fell by a third after the lights went in, though peak-time queues doubled and bus journeys lengthened by four minutes.Correct
  2. B. Pedestrian injuries fell by a third.
  3. C. Queues doubled at peak times.
  4. D. The town replaced its roundabout.

Answer: A. Pedestrian injuries at the junction fell by a third after the lights went in, though peak-time queues doubled and bus journeys lengthened by four minutes.

The gain and the costs together.

Why the other answers are wrong

B. Pedestrian injuries fell by a third.
Benefit only.
C. Queues doubled at peak times.
Cost only.
D. The town replaced its roundabout.
Setup only.

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