Mathematics · Time and Work
By working 9 hours every day, R1 alone can complete a task in 12 days. By working 3 hours every day, R2 alone can complete the same task in 18 days. If they both work together for 9 hours every day, in how many days can they complete the same task?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14 days✓
- 28 days
- 35 days
- 49 days
Correct answer
4 days
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