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A and B can do a piece of work in 12 days. B and C in 15 days and C and A in 20 days. If A, B and C work together, they will completer the work in :5

## Q: A and B can do a piece of work in 12 days. B and C in 15 days and C and A in 20 days. If A, B and C work together, they will completer the work in :

- 15 daysfalse
- 2$$ 7{5\over 6} \ days$$false
- 310 daystrue
- 4$$ 15 {2\over 3} \ days$$false

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