Mathematics · Time and Work
A is twice as good a workman as B and therefore is able to finish a piece of work in 30 days less than B. In how many days can they complete the whole work working together?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 140 days
- 220 days✓
- 315 days
- 430 days
Correct answer
20 days
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