Time and Work Quiz 06

A, B and C can do a work in 20, 25 and 30 days respectively. They together starts the work after 2 days A leaves 3 days before  the completion of work B leaves. Then the work is completed in how many days?





A, b and C can do a work in 15, 20 and 25 days respectively. They together starts the work after 1 day from the start A  leaves after 3 days from the start B leaves then the work is completed in how many days?





  1. A, B and C can do a work in 10, 15 and 20 days respectively. They together starts the work after 1 day A leaves after 2 days from the starts B leaves then the remaining work can be done by C alone in how many days?





  1. A, B and C can do a work in 20, 30 and 60 days respectively. First C starts the work after 3 days B joins, after 6 days from the start A also joins then the work is completed in how many days?





  1. A, B and C can do a work in 5, 10 and 15 days respectively, first A started the work after 1 day b joins after 2 days from the start C also joins, then the remaining work can be done by A, B and C in how many days?





  1. 40 men can do a work in 20 days then 20 men can do it in how many days?





30 men can do a work in 20 days then 10 men can do it in how many days?





50 men can do a work in 30 days after 5 days they started the work 5 men leave the work, then the remaining work is completed in how many days?





40 men can do a work in 30 days after 10 days they started the work 20 more men are joined then the remaining work is completed in how many days?





  1. A group of men can do a work in 20 days, if there were 10 men more then work could be finished in 10 days less. How many men are there n that group?







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