Work rates
Work rates
Secondary 2
4 marks
TGM Original Questions
Six workers can complete a project in \(d\) days. If one worker is absent, the remaining five take 4 more days. Assume that every worker works at the same constant rate and that adding workers does not reduce efficiency.
- Find \(d\).[2]
- To finish the project in 8 days, how many more workers than the original six are needed? State an assumption used in your calculation.[2]
Solution:
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Answer:(a) \(20\) days; (b) \(9\) more workers; equal constant work rates.
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