Mathematics · Time and Work
A and B can do a job together in 7 days. If A is 2 times as efficient as B, the same job can be done by A alone in:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 116 days
- 29 days
- 310.5 days✓
- 412.5 days
Correct answer
10.5 days
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