A can do a job in 10 days, B in 15 days. Together how many days?
A and B together finish in 12 days. A alone in 20 days. B alone?
A is twice as efficient as B. Together they finish in 18 days. A alone?
12 men complete a work in 8 days. After 4 days, 4 men leave. How many more days needed?
A pipe fills tank in 6 hrs. Another empties in 12 hrs. Both open together, hours to fill?
A and B work alternately (A starts), A finishes in 12 days, B in 18 days. Total days?
8 men finish a job in 20 days. How many men to finish in 16 days?
A, B, C together in 4 days. A=6 days, B=12 days. C alone?
Two pipes fill tank in 36 and 45 hours. After how many hours should pipe B close so tank fills in 30 hours?
P is thrice as efficient as Q. Together complete in 15 days. P alone?
A can do a job in 10 days, B in 15 days. Together how many days?
A and B together finish in 12 days. A alone in 20 days. B alone?
A is twice as efficient as B. Together they finish in 18 days. A alone?
12 men complete a work in 8 days. After 4 days, 4 men leave. How many more days needed?
A pipe fills tank in 6 hrs. Another empties in 12 hrs. Both open together, hours to fill?
A and B work alternately (A starts), A finishes in 12 days, B in 18 days. Total days?
8 men finish a job in 20 days. How many men to finish in 16 days?
A, B, C together in 4 days. A=6 days, B=12 days. C alone?
Two pipes fill tank in 36 and 45 hours. After how many hours should pipe B close so tank fills in 30 hours?
P is thrice as efficient as Q. Together complete in 15 days. P alone?