Mathematics · Time and Work
Radha, who is half as efficient as Kirti, takes 30 days to complete a task if she works alone. If Radha and Kirti work together, how long will they take to complete the task?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 120 days
- 210 days✓
- 312 days
- 415 days
Correct answer
10 days
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