Mathematics · Time and Work
5 senior developers and 10 junior developers can finish a coding project in 4 days. If a senior developer is 50% more efficient than a junior developer, in how many days can 10 senior developers and 5 junior developers complete a project 5 times as large?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 112.5 days
- 217.5 days✓
- 33.5 days
- 420.0 days
Correct answer
17.5 days
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