Mathematics · Time and Work
A, B and C can do the same work in 9 days, 12 days and 18 days, respectively. A started the work and worked for 3 days and left. Then, B joined the work and worked for 3 days and left. Then, C joined the work and completed the work. Find the number of days C took to complete the remaining work.
- 18.5
- 28
- 37
- 47.5✓
Correct answer
7.5
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