Related Questions

P works twice as fast Q. If Q can complex a work in 12 days independently, the number of days in which P and Q can together finish the works is_____
ক 4 days
খ 6 days
গ 3 days
ঘ 5 days
P works twice as fast as Q . If Q can complete a work in 12 days independently , the number of days in which P and Q can together finish the work is:
ক 4 days
খ 6 days
গ 3 days
ঘ 5 days
Four men and 6 women finish a job in 8 days. while 3 men and 7 women finish it in 10 days. while 3 men and 7 women finish it in 10 days. In how many days will 10 women take to finish the work together?
ক 32
খ 36
গ 40
ঘ None
If Arif works alone he will take 20 more hours to complete a task than if he works with Babu to complete the task. If Babu work alone, he will take 5 more hours to complete the task than if he works with Arif to complete the task. What is the ratio of the time taken by Arif to than taken by Babu if each of them works alone to complete the task?
ক 2 : 1
খ 5 : 3
গ 7 : 5
ঘ None of these
A takes twice as much time as B or thrice as much time as C to finish a piece of work Working together, they can finis the work Working together , they can finish teh work in 2 days . B can do the work alone in -
ক 4 days
খ 8 days
গ 6 days
ঘ 12 days
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?
ক 36
খ 32
গ 40
ঘ 30
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.
ক Only I
খ Only II
গ Only III
ঘ All 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?
ক 10 days
খ 15 days
গ 20 days
ঘ 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?
ক 20 days
খ 15 days
গ 10 days
ঘ 25 days
Bashar is twice as fast as Arif and Karim is three times as fast as Arif. If Bashar alone can complete a job in 12 days, how long will Bashar, Arif and Karim take to complete the same job together ?
ক 3 days
খ 4 days
গ 6 days
ঘ 8 days

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