Mathematics · Time and Work
A and B together can complete a piece of work in 36 days, while B and C together can do it in 20 days. If the efficiency of C is thrice the efficiency of A, in how many days can B alone complete two-third of the original work?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 140 days✓
- 236 days
- 345 days
- 430 days
Correct answer
40 days
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