Quiz 12

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Question no. 1A can do a work in 5 days and B in 10 days. If they work on it together for 3 days, then the fraction of the work that is left is :
Question no. 2A can lay railway track between two given stations in 14 days and B can do the same job in 10 days. With help of C, they did the job in 2 days only. Then, C alone can do the job in:
Question no. 3A, B and C can do a piece of work in 5, 10 and 20 days respectively. In how many days can A do the work if he is assisted by B and C on every third day?
Question no. 4A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
Question no. 5A alone can do a piece of work in 4 days and B alone in 6 days. A and B undertook to do it for Rs. 3000. With the help of C, they completed the work in 2 days. How much is to be paid to C?
Question no. 6If 3 men and 4 boys can do a piece of work in 5 days while 13 men and 24 boys can do the same in 1 day, the time taken by 3 men and 4 boys in doing the same type of work will be:
Question no. 7A can do a piece of work in 3 hours; B and C together can do it in 2 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?
Question no. 8A can do a certain work in the same time in which B and C together can do it. If A and B together could do it in 5 days and C alone in 30 days, then B alone could do it in:
Question no. 9A does 40% of a work in 8 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?
Question no. 10A 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 12 hours. All the machines are started at 9 A.M. while machine P is closed at 11 A.M. and the remaining two machines complete work. Approximately at what time will the work (to print one lakh books) be finished?

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