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Practice Time Questions and Answers

A man can do a piece of work in 30 hours. If he works with his son then the same piece of work is finished in 20 hours. If the son works alone he can do th...
What % of a day is 30 minutes ?
A person from the top of a hill observes a vehicle moving towards him at a uniform speed. It takes 10 minutes for the angle of depression to change from 45...
A man on the top of a tower, standing on the sea-shore, finds that a boat coming towards him takes 10 minutes for the angle of depression to change from 30...
A and B can do a work in 21 days, A is (7/4) times as efficient as B. In how many days, A alone can complete the (100/3)% of the work?
A can finish the work in 40 days and B in 30 days. They both work together for 5 days and then B leaves. How many days will A take to complete the remainin...
A flight has to travel between 2 cities A and B, 2000 km apart. The flight was slowed down due to bad weather. Its average speed for the trip reduced by 20...
Pipe A can fill the tank 5 times faster than pipe B, if pipe A and B together fill the tank in 50 minutes, then pipe B alone can fill the tank in:
A and B can do job in 10 days. B and C can do same job in 12 days. A, B and C together can do same job in 8 days. In how many days A and C together can com...
A and B can finish a work working on alternate days in 19 days, when A works on the 1st day. Similarly, they can finish the work working on alternate days ...
A and B can complete a work together in 36 days. If A alone can complete one-fourth of the work in ‘x’ days and remaining work is completed by ...
A and B alone can complete a work in 30 and 60 days, respectively. 50% of the work is completed by C in 6x days, and the remaining work is completed by A a...
A started a work such that he can complete the whole work in 30 hours. After working for 10 hours, he worked with the rate such that the whole work can be ...
A’ and ‘B’ together can complete a work in 8 days, while ‘B’ and ‘C’ together can complete the work in 12 days. I...
A and B together can complete a piece of work in 35 days while A alone can complete 50% of the work in 20 days. Find the time taken by B to complete 12.5% ...
A is thrice as efficient as B and can finish a piece of work in 28 days less than B. B can finish this work in how many days?
Working alone, B can complete the work in 20 days. C is twice as efficient as B and A takes 2 days more than it takes C to complete the work. Working toget...
An elephant can do a work as fast as two horses ‘A’ and ‘B’ can do it by working together. If horse ‘A’ alone can compl...
Harish and Bimal can complete a task in 20 days. They worked at it for 15 days and then Bimal left. The remaining work was done by Harish alone, in 10 days...
A mango kept in a basket doubles every one minute. If the basket gets completely filled by mangoes in 30 min then in how many minutes half of the basket wa...
15 male employees or 20 female employees of a company can complete a project in 26 days. How long will 30 male employees and 12 female employees together t...
A and B together can complete a task in 10 days, B and C can do in 15 days, and C and A together can do it in 12 days. How long will they take to complete ...
Pipes A and B can fill an empty tank in 6 and 8 hours respectively, while pipe C can empty the full tank in 10 hours. If all three pipes are opened togethe...
If 10 men can complete a piece of work in 12 days by working 7 hours a day, then in how many days can 14 men do the same work by working 6 hours a day?
Three pipes, A, B, C can fill an empty cistern in 2, 3 and 6 hours respectively. They are opened together. After what time should B be closed, so that the ...
The diameters of three inlet pipes of a cistern are 1.5 cm, 2 cm and 2.5 cm respectively. The pipe with the maximum diameter can alone fill up the cistern ...
A can do a piece of work in 15 days while B can do it in 18 days. Starting with A, they work on alternate days till the work gets over. How many days in al...
A motorboat whose speed is 20 km/h in still water takes 30 minutes more to go 24 km upstream than to cover the same distance downstream. If the speed of th...
A can finish a piece of the work in 16 days and B can finish it in 12 days. They worked together for 4 days and then A left. B finished the remaining work....
A and B can complete a work in 40 and 60 days respectively. They started a work which is to be completed in 20 days. But it was found that they are lagging...
Anu is four times as good as Binni in completing a task. Together they finish the same task in 7 hours. In how many hours will Anu alone complete the task?
P, Q and R can complete a work in 10 days. 20 days and 30 days, respectively, working alone. How soon can the work be completed if P is assisted by Q and R...
A can do (2/5) of a work in 6 days and B can do 30% of the same work in 3 days. They worked together for 4 days. The remaining work was completed by C alon...
A and B can complete a piece of work in 120 days, B and C can complete it in 150 days, and A and C can complete it in 200 days. In how many days can B alon...
A can complete 40% of a work in 6 days and B can complete 33(1/3)% of the same work in 8 days. They work together for 8 days. C alone completes the remaini...
A car is moving at a uniform speed of 35 km/h. What is the time it takes to cover 140 km?
A can complete 25% of the work in 4 days, B can complete 50% of the same work in 12 days and C can complete the same work in 32 days. They staned working t...
A contractor assigned a job to three persons A, B and C. ‘A’ which is 25% less efficient than ‘B’ can complete 20% of a work in 8 days. ‘C’ tak...
A car running with a speed of 69 km/hr takes 28 hours to go from 'A' to 'B'. If on the way back from 'B' to 'A', the car takes 20% less time than it takes ...
P and Q can complete a project in 15 days and 10 days, respectively. They started doing the work together, but after 2 days, Q had to leave and P alone com...

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