John can do a piece of work alone in 20 days, while Ravi can do the same piece of work alone in 28 days. In how many days can the duo complete the same work if they work together?

X and Y together can do a piece of work in 30 days. Z alone can do it in 60 days. If they worked together, then in how many days they can finish the work?

In a factory, a piece of work is completed by Raima in 15 days while John can finish it in 10 days. The factory manager has to complete the work as soon as possible so he orders John and Raima to work together. How many days will it take to complete the work?

Suresh and Anil are working on a special project. Suresh takes 5 hours to type 40 pages and Anil needs 6 hours to type 32 pages on a computer. How much time will it take them to type a 110-page assignment if they work on two different computers?

Susan can type 12 pages in 6 minutes. Mary can type 6 pages in 12 minutes. Working together, how many pages can they type in 32 minutes?

A and B can individually complete a piece of work in 18 days and 30 days, respectively. A and B started working together, but A left 16\(2\over3\) days before the work is completed and B alone completed the rest of the work. For how many days did A work?

A can do a work in 4 days and B in 12 days. If they work on it together for 2 days, then the fraction of the work that will be left is:

If A and B together can do a piece of work in 20 days, and A alone can do the same work in 30 days, then in how many days can B alone complete the same work?

It takes A and B, 3 and 6 hours, respectively, to complete a certain work. If they work on the alternate hour. How long will it take them to accomplish the task?

Anil and Bipin together can complete a work in 15 days, while Bipin alone can finish it in 20 days. In how many days can Anil alone finish the work?

Amit can complete a piece of work in 5 hours, Jeevan and Paul together can complete it in 4 hours, while Amit and Paul together can complete it in 3 hours. Approximately, how many hours will Jeevan alone take to complete the work (rounded off to the nearest integer)?

Supraja and Kausalya can complete a work in 30 days and 20 days, respectively. If Supraja starts the work and they work on alternate days, in how many days will 75% of the work be completed?

If Mohit can complete 2/3^th of the work in 24 days, then in how many days can 1/9^th of the work be complete by him?

P and Q can do a job in 24 days, Q and R can do it in 30 days, while P and R can do it in 40 days. X is four times as efficient as P, Y is half as efficient as Q, and Z is 2.5 times as efficient as R. Determine the number of days required to complete the same job if X , Y and Z work together.

A and B working together can finish a piece of work in 8 days while B alone can do it in 24 days. In how many days can A alone finish the work?

A worker completes \(\frac{3}{5}\) of a work in 12 days. In how many days will the complete \(\frac{3}{4}\) of the work?

In a company, a piece of work can be completed in 4, 6, and 18 days alone by R, S, and T, respectively. In how many days will the work be completed if they work together? (Rounded off to 2 decimal places)

A can complete a piece of work 3 times as fast as B. If A and B together can complete the work in x days, how many days would B alone take to complete the work?

Two friends A and B signed an agreement with Reliance company to complete a project in 10 days. The efficiency of A is 2 times of B. If Both do the work for 10 days but 1/4th of the total work still remains. Find how many days A can complete the project alone.

A can do a work in 10 days and B in 25 days. If they work on it together for 5 days, then the fraction of the work that is left is?

Four persons A, B, C, and D can complete a work in 15 days, 12 days, 10 days, and 20 days respectively. All four contributed to the work but only one of them worked on a day. In how much less time would they finish the work if they work on a rotation basis?

Time taken to complete a work by A alone is 100% more than the time taken by both A and B to complete the work. B is thrice as efficient as C. B and C together take 12 days to complete the same work. How many days A will take to complete the work alone?

A and B working alone can finish a piece of work in 24 hours and 40 hours respectively. A and B started working with C then find the time in which the work will be finished if the efficiency of C is 37.5% of the sum of the efficiencies of A and B.

There are 3 friends Ram, Bhola, and Sona and they work together in a company. The efficiency of Ram is 4/3 of the efficiency of Bhola and the efficiency of Bhola is 3/2 of the efficiency of Sona. If they completed work in 8 days then, find in how many days Sona can complete the work alone.

Ram and Shyam can do work in x days. If Ram can do the same work alone in x + 30 days. If Shyam can do the same work in x + 3/10 days, then find the value of x.

Sohan can do 2/5 of the work in 10 days and Rohan can do 1/3 of the work in 10 days. In how many days can Rohan and Sohan together do the work?

A contractor hires Bachan Pandey to complete a work in 80 days. Bachan can do 1 unit a day. After he worked for 20 days, Abhishek was hired by the contractor along with Bachan to finish the remaining work before 20 days. What is the unit of work done by Abhishek in a day?

Avi, Bhumi, and Chirag are working on a project. Avi and Bhomi took 1 year, Bhumi and Chirag took 8 months, and Chirag and Avi took 1.5 years to complete the project.

I. The project will be completed by all three in 7.57 months.

II. 50% of the project will be completed by Avi and Chirag in 9 months.

III. If Bhumi's friend Vinay, who has an efficiency of 25/2 units, comes to help Bhumi, then 75% of the project will be completed in 3 months.

Each of them works in a shift of 4 hours on a usual day, but due to some reasons, each of them decides to work on a separate day one by one in the alphabetical order of their names. Moreover, A and B work less i.e. only for 2 hours on their respective days due to persistent illness. In how many days the work would be completed in this condition? 

(Note: A Day will be counted as a whole if any of them works, irrespective of the hours the work is done)

A is 40% more efficient than B and both can complete a work in 20 days. A and B start work and do it for eight days. If the remaining work is completed by C in 24 days, then find in how many days C will complete the work alone.

A can do 3.25 units a day and B can do 2.25 units a day. If work can be done by B in 16 days, then on which day of work the work will be completed when A and B start the work alternatively and the one who is more efficient starts the work?

A machine 'A' can print one thousand books in 10 hours, machine 'B' can print the same number of books in 15 hours while machine 'c' can print them in 20 hours. All the machines are started at 11 a.m. while machine 'C' is closed after 2 hours and the remaining two machines complete the work. At what time will the work be finished? 

Ram and Sourav have started working on a project together. Ram can alone complete the work in 15 days while Sourav can complete the work alone in 20 days. After 4 days of work, Sourav took a break of 3 days while Ram continued to work. In how many days, the project will be completed? (approx.)

A can do a piece of work in 30 days. He works on it for 6 days and then B finished the work in 12 days. How long will they together take to complete the work?

Faizal and Rizwan can complete a piece of work in 24 and 30 hours respectively. Rizwan works with half of his efficiency and started the work 4 hours before faizal joined. In what time will the work be completed?

A can complete a job in x + 45 days. B can complete it in x days. If the number of days taken by them to complete the job together is x - 3, find the value of x.

A can complete a job in 20 days. B can complete it in 30 days. If they work on alternate days, the job would be completed in how many days if A starts the job?

2 men A and B can build a wall in 15 and 20 hours respectively. But, if they work together they use 280 fewer bricks per hour and build a wall in 12 hours. Find the no. of bricks A can build in an hour.

Three friends Ankush, Anand and Ashish start work together. If the efficiency of Ankush is 2/3 of the efficiency of Ashish and the efficiency of Ankush is the 3/4 of Anand. If Anand can do the work alone in 15 days then find in how many days they can complete the work together.

A printing press has 2 printers, One ink printer and one laser printer. Laser printer can print 1 page in 30 seconds while ink printer can print 1 page in 45 seconds. If there are 850 pages to be printed and both printers are to work in parallel, how much time the printing would take?

X can complete a job in 6 days. Y can complete it in 10 days. If they work on alternate days, the job would be completed at the earliest in how many days if X starts to work?

A, B and C together can complete a piece of work in 6 days while A and C together can finish the same work in 12 days. A, B and C started working and after 4 days, B left the work and D joined. If the work got completed in 7 days then find the time taken by D (in days) alone to complete the work with the same efficiency.

Q is 50% more efficient than P. Q started the work and do it for x days and then replaced by P. P completed the remaining work in (x + 8) days. Ratio of work done by P and Q is 3 : 4. In how many days P and Q working together complete the whole work ?

A is thrice as good as B and therefore is able to finish a job in 50 days less than B. Working together, they can do it in:

A, B and C working alone can complete a project in 25, 20 and 15 days respectively. A and B together started the work and C joined them after 7 days but C is working with half of his efficiency due to injury. Find the time in which they will complete the whole project.

Three friends Satish, Bhavya, and Abhi completed the work in 10 days, 15 days & 12 days respectively. They started to work together but Satish left the work after two days and Abhi left the work 1 day before the completion of the work. In how many days the whole work will be completed?

Jordan can finish a piece of work in 12 days while It take only 10 days for Tony to finish the same work. In how many days will they together finish the work?

Ram and Shyam were assigned a task to complete in 20 days. Normally, Ram has double the efficiency of Shyam. However, Ram deliberately worked at 70% of his efficiency so Shyam needs to work more to match the deadline. With this added efficiency, in how much time Shyam would have been able to complete the task alone?

If B, C and D can complete the work in Z days, then find the value of X - Z.

A and B can complete work in 8 days and 10 days respectively. If A works on the first day alone only after which he leaves and then B starts doing the remaining work with another person C and they both complete the remaining work in 7 days, then find the number of days in which the third person C can complete the work alone.