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Mathematics 10 Online
OpenStudy (mathmath333):

Each of A,B,C need a certain unique time to do a certain work.C needs 1hr less than A to complete the work.Working together they require 30min to complete 50percent of the job.The work also gets completed if A & B start working together and A leaves after 1hr and B works for further 3 hrs.How much work does C do per hour? a)16.6% b)33.3% c)66.6% d)50%

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