O-LevelComputer ScienceAlgorithm design and problem-solving2210/21 · May/June 2015 · Q35 Marks
The flowchart below inputs the weight of a number of parcels in kilograms. Parcels weighing more than 25 kilograms are rejected. A value of –1 stops the input. The following information is output: the total weight of the parcels accepted and number of parcels rejected. [Figure 3.1]
- Complete the trace table for the input data: 1.8, 26.0, 7.0, 11.3, 10.0, 2.5, 25.2, 5.0, 19.8, 29.3, –1 Total Reject Weight OUTPUT 0 0 [5]
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Mark scheme
Marking points from the official mark scheme (May/June 2015). The mark or mark type is shown in brackets.
- [2] (2 marks) (-1 for each error) (then follow though) for Total column
- [1] (1 mark) for Reject column
- [1] (1 mark) for Weight column
- [1] (1 mark) (allow follow through) (from Total and Reject) for Output column
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