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A and B can do a work in 12 days, B and C in 15 days, C and A in 20 days. If A, B and C work together, they will complete the work in
5Q:
A and B can do a work in 12 days, B and C in 15 days, C and A in 20 days. If A, B and C work together, they will complete the work in
- 15 daysfalse
- 2$$ 7{5\over6}$$false
- 310 daystrue
- 4$$ 15{2\over3}$$false
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