Practice: Time & Work

Question 1 of 25

Medium Time & Work

K can finish a task in 5 days, and L can finish the same task in 10 days. If K and L work together, but after 2 days K leaves, how many more days will it take to complete the task?

Question 2 of 25

Medium Time & Work

A and B together do work in 10 days. A alone in 15 days. B alone?

Question 3 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 but pipe A is turned off after 5 hours, how much more time will pipe B take to fill the tank?

Question 4 of 25

Medium Time & Work

M can complete a task in 25 days. N takes 5 days more than M to complete the same task. If they work together, how many days will it take for them to finish the task?

Question 5 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 6 of 25

Medium Time & Work

Q can complete a task in 9 days, and R can complete it in 18 days. If they work on alternate days starting with Q, in how many days will the task be completed?

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

If 5 men can do a work in 12 days, how many days will 8 men take to complete the same work?

Question 9 of 25

Medium Time & Work

A man can do work in 8 days, B in 12. Together?

Question 10 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 11 of 25

Medium Time & Work

A man can do a job in 15 days, and his son can do the same job in 30 days. They work together for 6 days, then the son falls sick. How many more days will the man take to complete the remaining work?

Question 12 of 25

Medium Time & Work

A, B, and C can complete a piece of work in 24, 36, and 48 days respectively. They start working together, but A leaves after 6 days. How many more days will B and C take to complete the remaining work?

Question 13 of 25

Hard Time & Work

G is thrice as efficient as H and can complete a work in 15 days less than H. How long will it take for them to complete the work together?

Question 14 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 15 of 25

Medium Time & Work

A and B together do 1 work in 12 days. A alone in 20. B alone?

Question 16 of 25

Medium Time & Work

R can complete a task in 9 days, and S can complete it in 18 days. They work together for 4 days, then R leaves. How many more days will S take to complete the task?

Question 17 of 25

Medium Time & Work

C can do a piece of work in 10 days, and D can do the same work in 15 days. They work together for 3 days. How much work is left?

Question 18 of 25

Medium Time & Work

X, Y, and Z can complete a job in 20, 30, and 40 days respectively. They work together for 5 days, after which Z leaves. How many more days will X and Y need to finish the remaining work?

Question 19 of 25

Medium Time & Work

A can complete a task in 18 days while B can complete the same task in 12 days. They work together for 6 days. How much of the work is left?

Question 20 of 25

Medium Time & Work

A group of men can complete a work in 15 days. If 5 more men join them, the work gets finished in 10 days. Find the original number of men.

Question 21 of 25

Medium Time & Work

C and D can build a wall in 12 days and 16 days respectively. They work together for 6 days. What fraction of the work is left?

Question 22 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?

Question 23 of 25

Medium Time & Work

G, H, and I together can finish a project in 6 days. G alone can finish it in 12 days and H in 18 days. If they work together for 3 days, how many more days will I take to complete the remaining work?

Question 24 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 25 of 25

Hard Time & Work

E and F can complete a task in 16 days and 24 days respectively. They start the work together, but after 4 days, F leaves. How many days will E take to complete the remaining work?

Finish

K can finish a task in 5 days, and L can finish the same task in 10 days. If K and L work together, but after 2 days K leaves, how many more days will it take to complete the task?

A and B together do work in 10 days. A alone in 15 days. B alone?

Two pipes A and B can fill a tank in 20 hours and 30 hours respectively. If both pipes are opened together but pipe A is turned off after 5 hours, how much more time will pipe B take to fill the tank?

M can complete a task in 25 days. N takes 5 days more than M to complete the same task. If they work together, how many days will it take for them to finish the task?

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?

Q can complete a task in 9 days, and R can complete it in 18 days. If they work on alternate days starting with Q, in how many days will the task be completed?

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?

If 5 men can do a work in 12 days, how many days will 8 men take to complete the same work?

A man can do work in 8 days, B in 12. Together?

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

A man can do a job in 15 days, and his son can do the same job in 30 days. They work together for 6 days, then the son falls sick. How many more days will the man take to complete the remaining work?

A, B, and C can complete a piece of work in 24, 36, and 48 days respectively. They start working together, but A leaves after 6 days. How many more days will B and C take to complete the remaining work?

G is thrice as efficient as H and can complete a work in 15 days less than H. How long will it take for them to complete the work together?

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?

A and B together do 1 work in 12 days. A alone in 20. B alone?

R can complete a task in 9 days, and S can complete it in 18 days. They work together for 4 days, then R leaves. How many more days will S take to complete the task?

C can do a piece of work in 10 days, and D can do the same work in 15 days. They work together for 3 days. How much work is left?

X, Y, and Z can complete a job in 20, 30, and 40 days respectively. They work together for 5 days, after which Z leaves. How many more days will X and Y need to finish the remaining work?

A can complete a task in 18 days while B can complete the same task in 12 days. They work together for 6 days. How much of the work is left?

A group of men can complete a work in 15 days. If 5 more men join them, the work gets finished in 10 days. Find the original number of men.

C and D can build a wall in 12 days and 16 days respectively. They work together for 6 days. What fraction of the work is left?

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?

G, H, and I together can finish a project in 6 days. G alone can finish it in 12 days and H in 18 days. If they work together for 3 days, how many more days will I take to complete the remaining 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?

E and F can complete a task in 16 days and 24 days respectively. They start the work together, but after 4 days, F leaves. How many days will E take to complete the remaining work?

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