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To do a certain work, the ratio of the efficiencies of A and B is 7: 5. Working together, they can complete the same work in
Q:
To do a certain work, the ratio of the efficiencies of A and B is 7: 5. Working together, they can complete the same work in
- 118 daystrue
- 215 daysfalse
- 316 daysfalse
- 421 daysfalse
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