Mathematics · Time and Work
A alone can complete a task in 30 days, while B alone can complete it in 40 days. A and B, working together, can complete the same task in:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11717 days✓
- 21127 days
- 31527 days
- 437 days
Correct answer
1717 days
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