Related Questions

A man and a boy together can complete a job in 81 days. Two men and three boys together can complete the same job in 36 days. In how many days can four men together complete the same job?
A 21
B 27
C 30
D 36
P and Q together can make a door in 12 days. They started the work together but after 8 days P left the work. The remaining work is completed by Q alone in 7 more days. In how many days can P alone complete the entire work?
A 21
B 24
C 28
D 32
Arman can complete a job in 12 hours and Rehan can complete the same job in 8 hours. Arman started the job at 10:30 a.m., and stopped working at 2:30 p.m. To complete the job, if Rehan starts working at 3 p.m., at what time can he finish the job?
A 9.30 p.m.
B 9 p.m.
C 8.30 p.m.
D 10 p.m
Hassan completed 1/3 portion of a job in 8 days and left. Then Jashim was recruited and he worked for 5 days and left the job. Hassan again joined and completed the rest of the Josim require to complete the job alone?
A 10 days
B 24 days
C 30 days
D 36 days
Mujahid can do a work in 8 days, while has colleagues Asad takes 12 days and Mithun takes 16 days to complete the same.Mujahid and Asad started the work and after few days Asad left the work keeping it incomplete. Rest of the work was completed by Mujahid and Mithun in 2 days.How long it took to complete the whole work?
A 4 days
B 5 days
C 6 days
D 8 days
Farid can complete a job in 12 hours, and Jibon can complete the same job in 8 hours. Farid starts the job at 9 a.m., and stops working at 3 p.m. If Jibon starts working at 4 p.m. to complete the remaining job, at what time is the job finished?
A 6 p.m.
B 8 p.m.
C 9 p.m.
D 10 p.m.
Farid can complete a job in 12 hours, and Jibon can complete the same job in 8 hours. Farid starts the job at 9 am and stops working at 3 pm. If Jibon starts working at 4 pm to complete the remaining job, at what time is the job finished?
A 6 p.m.
B 7 p.m.
C 8 p.m.
D 10 p.m.
Mr. Rafin can complete a job in 15days , while Mr. Shafin takes twice as long as to do the same job. If they work together,how many days will they require to complete the job?
A 12
B 15
C 10
D 6
A can do 75% of a job in 9 days and B can do half of the job in 8 days. If they work on it together, then in how many days can they do half of the job?
A 40\/7
B 24\/7
C 7\/2
D 9\/2
A can complete a task alone in 8 days, while B takes 12 days to do it by herself. Together with C it takes them 4 days to complete the work. If C and D together can complete the task in 15 days, then how many days will D need to complete the task by herself?
A 36
B 32
C 40
D 30

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