A can do a piece of work in 30 days. He works at it for 6 days and then B finishes it in 18 days. In what time can A and B together it ?5
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Q: A can do a piece of work in 30 days. He works at it for 6 days and then B finishes it in 18 days. In what time can A and B together it ?
- 114 1/2 daysfalse
- 211 daysfalse
- 313 1/4 daysfalse
- 412 6/7 daystrue
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