Related Questions

Vijay can do a work in 8 hours. Vijay and Puneet together can do the same work in 6 hours. Puneet and Sachin together can do the same work in 4 hours. Sachin alone can complete the same work in how many hours?
A 22\/5
B 28\/5
C 24\/5
D 26\/5
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
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
It takes 10 days for 4 boys to complete a piece of work. The same work can be completed by 7 girls in 10 days. If 3 boys and 5 girls work in together, approximately how many days will they need to complete the work ?
A 10
B 15
C 7
D none of these
A can finish a work in 5 days and B takes 4 days to do the same work. If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together?
A 10 days
B 15 days
C 20 days
D 25 days
A can finish a work in 5 days and B takes 4 days to do the same work . If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together?
A 20 days
B 15 days
C 10 days
D 25 days
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
City High School must put together a debating team consisting of four debaters.There are candidates of equal ability : X,Y and Z who are all seniors; and A,B,C and D who are all juniors..The school requires that there should be two seniors and two juniors in the team.It is also necessary that all of the debaters be able to work with one another. *Debaters Y and A cannot work together. *Debaters Z and C cannot work together. *Debaters A and B cannot work together. which of the following statements must be false? 1.Debaters Y and C are never selected together. 2.Debaters Z and D are never selected together. 3.Debaters Z and D are never selected together.
A Only I
B Only II
C Only III
D All of these
Tow workers A and B are engaged to do a work . A working alone takes 8 hours more to complete the job than if both worked together . If B worked along, he would need 4.5 hours more to complete the job than they both working together . What time would they take to do the work together ?
A 4 hours
B 5 hours
C 6 hours
D 7 hours
A and B can complete a task in 12 days. However, A had to leave a few days before the task was completed and hence it took 16 days in all to complete the task. If A alone could complete the work in 21 days, how many days before the work getting over did A leave?
A 7
B 5
C 9
D 3

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