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Earn 100

 A can do a piece of work in 20 days. He works at it for 5 days and then B finishes it in 10 more days.In how many days will A and B together finish the work?
 

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Important Questions on Time and Work

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A and B undertake to do a piece of work for 100. A can do it in 5 days and B can do it in 10 days.With the help of C, they finish it in 2 days. How much should be paid for his contribution?
 
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Twenty workers can finish a piece of work in 30 days. After how many days should 5 workers leave the job so that the work is completed in35 days?
 
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 Arun and Vinay together can do a piece of work in 7 days. If Arun does twice as much work as Vinay in a given time, how long will Arun alone take to do the work ?
 
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Subhash can copy 50 pages in 10 hours; Subhash and Prakash together can copy 300 pages in 40 hours. In how much time can Prakash copy 30 pages?
 
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X number of men can finish a piece of work in 30 days. If there were 6 men more, the work could be finished in10 days less. What is the original number of men?
 
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Sashi can do a piece of work in 25 days and Rishi can do it in 20 days. They work for 5 days and then Sashi goes away. In how many more days will Rishi finish the work?
 
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Raju can do a piece of work in 10 days, Vicky in 12 days and Tinku in 15 days. They all start the work together, but Raju leaves after 2 days and Vicky leaves 3 days before the work is completed. In how many days is the work completed?
 
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Sambhu can do 12 of the work in 8 days while Kalu can do 13 of the work in  6 days. How long will it take for both of them to finish the work?