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Time and works

Time and works
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A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12hours.
All the machines are started at 9
A.M. while machine P is closed at 11
A.M. and the remaining two machines completework.
Approximately at what time will the work to print one lakh books be finished


A and B together can complete a piece of work in 4days.
If A alone can complete the same work in 12days.
in how many days can b alone complete that work


B can do the same such as A can finish a work in 18 days in half the time taken by
A. working together Then, what part of the same work they can finish in a day


A can finish a work in 18 days and B can do the same in half the time taken by
A. Then, working together , what part of the same work they can finish in a day


A and B can do a job together in 7days.
A is 13/4 times as efficient as
B. The same job can be done by A alone in


A and B can complete a work in 12days.
B and C can complete the same work in 18days.
C and A can complete in 24days.
How many days will take for A, B and C combined together to complete the same amount of work


A sum of money is sufficient to pay A’s wages for 21 days and B’s wages for 28days.
The same money is sufficient to pay the wages of both for


A sum of money is sufficient to pay A's wages for 21 days and B's wages for 28days.
the same money is sufficient to pay the wages of both for


A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2hours.
How long will B alone take to do it


If A can do 1/4 of a work in 3 days and B can do 1/6 of the same work in 4 days, how much will A get if both work together and are paid Rs. 180 in all


Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons perminute.
All the three pipes working together can fill the tank in 15minutes.
The capacity of the tank in gallons is


A and B can do a piece of work in 72 days, B and C can do it in 120days.
A and C can do it in 90days.
In what time can A alone do it


A and B can do a piece of work in 72 days; B and C can do it in 120 days; A and C can do it in 90days.
In what time can A alone do it


A and B can do a piece of work in 72 days ; B and C can do it in 120 days ; A anc C do it in 90. In what time can A alone do it


A does half as much work as B and C does half as much work as A and Btogether.
If C alone can finish the work in 40 days, then together all will finish the work in


A alone can complete a work in 16 days and B alone can do in 12days.
Starting with A, they work on alternatedays.
The total work will be completed in


A alone can complete a work in 16 days and B alone in 12days.
Starting with A, they work on alternatedays.
The total work will be completed in


A alone can finish a piece of work in 10 days which B alone can finish in 15days.
If they work together and finish it, then out of total wages of Rs 225, the amount (in rupees) that A will get, is


A and B borrowed a tractor for 23days.
A ploughed 12 acres per day for a certain number of days and then Bused it to plough 15 acres per day for the remainingdays.
If they paid Rs 3,000 and Rs 2,000 respectively, for how many days did A use the tractor


Two workers A and B manufactured a batch of identicalparts.
A worked for 2 hours and B worked for 5 hours and they completed half thejob.
Then they worked together for another 3 hours and they had to do
(1/20)th of thejob.
How many hours time does B take to complete the job, if he worked alone




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