Mathematics · Time and Work
A, B, and C can complete a piece of work individually in 20, 30, and 60 days respectively. A works every day. B assists A on all odd-numbered days (Day 1, 3, 5...), while C assists A on all even-numbered days (Day 2, 4, 6...). In how many days will the work be completed?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 115 days
- 214 days
- 3131/2 days✓
- 4131/5 days
Correct answer
131/2 days
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