Practice: Time & Work

Question 1 of 25

Medium Time & Work

Two pipes A and B can fill a tank in 20 hours and 30 hours respectively. If both pipes are opened together, how long will it take to fill the tank?

Question 2 of 25

Medium Time & Work

Q can complete a task in 14 days, and R can complete the same task in 21 days. If R works for 7 days and then Q joins him, how many more days will it take to complete the work?

Question 3 of 25

Medium Time & Work

A and B can do work in 12 and 18 days respectively. Together they finish in?

Question 4 of 25

Hard Time & Work

R and S can complete a task in 15 and 10 days respectively. They start working together, but after 4 days, R falls sick. How many more days will S need to finish the task alone?

Question 5 of 25

Hard Time & Work

C alone can complete a work in 12 days. D is 60% more efficient than C. If both work together, in how many days will they complete the work?

Question 6 of 25

Hard Time & Work

Two workers, N and O, are hired for a project. N alone would take 8 days more than the time taken by both N and O together. If O alone would take 18 days more than the time taken by both, how many days will N alone take to finish the work?

Question 7 of 25

Medium Time & Work

A group of workers can complete a job in 16 days. However, after working for 4 days, 2 workers leave the group, and the remaining workers finish the work in 18 more days. How many workers were there initially?

Question 8 of 25

Medium Time & Work

A can finish a work in 12 days and B can do it in 15 days. They start working together but after 3 days, A gets ill. How many more days will B need to finish the work?

Question 9 of 25

Medium Time & Work

A does 75% of a piece of work in 15 days. He then calls B, and together they finish the remaining work in 5 days. How long would B alone take to complete the entire work?

Question 10 of 25

Hard Time & Work

I can complete a piece of work in 18 days and J can complete the same work in 12 days. They work together for 6 days. K then completes the remaining work in 3 days. How long will it take K to complete the work alone?

Question 11 of 25

Medium Time & Work

Three people, X, Y, and Z, can complete a task in 15, 20, and 30 days respectively. If they work together, how long will it take to complete the task?

Question 12 of 25

Medium Time & Work

A and B can complete a piece of work in 12 days and 15 days respectively. They start working together but after 3 days, A leaves. In how many more days will B complete the remaining work?

Question 13 of 25

Medium Time & Work

Two painters, K and L, can paint a house in 20 days and 30 days respectively. They start painting together but L leaves after 6 days. How much longer will K take to finish the painting?

Question 14 of 25

Medium Time & Work

P and Q can plough a field in 8 days and 12 days respectively. They work together for 3 days. What fraction of the field is unploughed?

Question 15 of 25

Medium Time & Work

N can type a manuscript in 18 days, and O can type the same manuscript in 24 days. They work together for 4 days. What fraction of the manuscript is still left?

Question 16 of 25

Medium Time & Work

Two workers, E and F, can complete a task in 16 days and 24 days respectively. They work together for 5 days. How much of the work is left?

Question 17 of 25

Medium Time & Work

E can do a work in 20 days. F can do the same work in 30 days. They work together for 8 days, and then F leaves. How many more days will E take to finish the remaining work?

Question 18 of 25

Medium Time & Work

A job can be completed by 40 workers in 25 days. If 10 more workers join after 5 days, how many total days will the project take to complete?

Question 19 of 25

Medium Time & Work

J can complete a job in 5 days, and K can complete it in 15 days. They work together for 2 days, then J leaves. How long will it take K to finish the rest of the work?

Question 20 of 25

Medium Time & Work

A contractor hires 50 workers to complete a project in 40 days. After 10 days, 10 more workers are added to speed up the work. How many days in total will the project take to complete?

Question 21 of 25

Medium Time & Work

E can complete a job in 8 days. F can complete the same job in 12 days. If E and F work together, how many days will it take for them to complete the job?

Question 22 of 25

Hard Time & Work

P and Q can do a piece of work in 20 days and 30 days respectively. They start together but P leaves after 5 days. In how many more days will Q complete the work?

Question 23 of 25

Medium Time & Work

O can plough a field in 16 days and P can do it in 24 days. They start working together but after 4 days, O leaves. In how many more days will P finish the work?

Question 24 of 25

Medium Time & Work

If 15 workers can complete a task in 45 days, in how many days will 25 workers complete the same task?

Question 25 of 25

Medium Time & Work

A contractor employs 50 workers to complete a project in 40 days. If 10 more workers join after 10 days, how many days in total will the project take?

Finish

Two pipes A and B can fill a tank in 20 hours and 30 hours respectively. If both pipes are opened together, how long will it take to fill the tank?

Q can complete a task in 14 days, and R can complete the same task in 21 days. If R works for 7 days and then Q joins him, how many more days will it take to complete the work?

A and B can do work in 12 and 18 days respectively. Together they finish in?

R and S can complete a task in 15 and 10 days respectively. They start working together, but after 4 days, R falls sick. How many more days will S need to finish the task alone?

C alone can complete a work in 12 days. D is 60% more efficient than C. If both work together, in how many days will they complete the work?

Two workers, N and O, are hired for a project. N alone would take 8 days more than the time taken by both N and O together. If O alone would take 18 days more than the time taken by both, how many days will N alone take to finish the work?

A group of workers can complete a job in 16 days. However, after working for 4 days, 2 workers leave the group, and the remaining workers finish the work in 18 more days. How many workers were there initially?

A can finish a work in 12 days and B can do it in 15 days. They start working together but after 3 days, A gets ill. How many more days will B need to finish the work?

A does 75% of a piece of work in 15 days. He then calls B, and together they finish the remaining work in 5 days. How long would B alone take to complete the entire work?

I can complete a piece of work in 18 days and J can complete the same work in 12 days. They work together for 6 days. K then completes the remaining work in 3 days. How long will it take K to complete the work alone?

Three people, X, Y, and Z, can complete a task in 15, 20, and 30 days respectively. If they work together, how long will it take to complete the task?

A and B can complete a piece of work in 12 days and 15 days respectively. They start working together but after 3 days, A leaves. In how many more days will B complete the remaining work?

Two painters, K and L, can paint a house in 20 days and 30 days respectively. They start painting together but L leaves after 6 days. How much longer will K take to finish the painting?

P and Q can plough a field in 8 days and 12 days respectively. They work together for 3 days. What fraction of the field is unploughed?

N can type a manuscript in 18 days, and O can type the same manuscript in 24 days. They work together for 4 days. What fraction of the manuscript is still left?

Two workers, E and F, can complete a task in 16 days and 24 days respectively. They work together for 5 days. How much of the work is left?

E can do a work in 20 days. F can do the same work in 30 days. They work together for 8 days, and then F leaves. How many more days will E take to finish the remaining work?

A job can be completed by 40 workers in 25 days. If 10 more workers join after 5 days, how many total days will the project take to complete?

J can complete a job in 5 days, and K can complete it in 15 days. They work together for 2 days, then J leaves. How long will it take K to finish the rest of the work?

A contractor hires 50 workers to complete a project in 40 days. After 10 days, 10 more workers are added to speed up the work. How many days in total will the project take to complete?

E can complete a job in 8 days. F can complete the same job in 12 days. If E and F work together, how many days will it take for them to complete the job?

P and Q can do a piece of work in 20 days and 30 days respectively. They start together but P leaves after 5 days. In how many more days will Q complete the work?

O can plough a field in 16 days and P can do it in 24 days. They start working together but after 4 days, O leaves. In how many more days will P finish the work?

If 15 workers can complete a task in 45 days, in how many days will 25 workers complete the same task?

A contractor employs 50 workers to complete a project in 40 days. If 10 more workers join after 10 days, how many days in total will the project take?

Require Hire Support