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A can do a work in 15 days and B in 9 days. If they work on it together for 5 days, then what fraction of work is left?
5Q:
A can do a work in 15 days and B in 9 days. If they work on it together for 5 days, then what fraction of work is left?
- 11/3false
- 21/9true
- 31/6false
- 43/7false
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