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Mathematics, 14.06.2020 20:57 breannaasmith1122
Working alone Trisha can complete a job in 80 minutes. Mona can complete the same job in two hours. They worked together for 30 minutes when Nanda, their friend, joined and for helping them. They finished the job 10 minutes later. How long would it take Nanda to complete the total alone.
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Working alone Trisha can complete a job in 80 minutes. Mona can complete the same job in two hours....
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