DELHI POLICE CONSTABLE MATHS(TIME AND WORK)QUIZ

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Question 1:

Amar, Akbar and Anthony are working on a project. Working together Amar and Akbar can complete the project in 1 year, Akbar and Anthony can complete in 16 months, Anthony and Amar can complete in 2 years. If the person who is neither the fastest nor the slowest works alone, the time in months he will take to complete the project is

Question 2:

Anu, Vinu and Manu can complete a work alone in 15 days, 12 days and 20 days, respectively. Vinu works everyday. Anu works only on alternate days starting from the first day while Manu works only on alternate days starting from the second day. Then, the number of days needed to complete the work is

Question 3:

If X and Y can complete a piece of work in 15 days, and X alone can do the same work in 30 days, find how many days will Y alone take to complete the same work?

Question 4:

X, Y and Z can do a piece of work in 30 days, 45 days and 90 days respectively. In how many days can the work be completed if X is assisted by Y and Z together, on every second day?

Question 5:

Atul, Mukesh and Manisha can complete a task in 12 days, 15 days and 18 days respectively. In how many days can Atul, Mukesh and Manisha together Complete the same task?

Question 6:

18 men built a ship model in 7 days. How many days will it take for 15 men to make that model?

Question 7:

Mr. Rajesh is twice as good a worker as Mr. Vishal and together they finish a piece of work in 28 days. In how many days will Vishal alone finish the work?

Question 8:

A can do a work in 10 days and $B$ in 15 days. How many days will both take together to complete the work?

Question 9:

A boy Completes a task in 3 days and gets $Rs .660$. What is the daily wage of the boy.

Question 10:

P is 4 times faster than Q in doing a job. Q takes 27 more days than P to finish the job. If they work together, in how many days will the work be finished?