Mathematics · Time and Work
The ratio of efficiency of Machine A and Machine B is 4:5. If they together can complete a work in 20 days, in how many days can Machine A alone complete the work?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 142 days
- 240 days
- 336 days
- 445 days✓
Correct answer
45 days
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