sita can finish typing a 100 page document in 9 mita in 6hours and Rita in 12hours how long will they to type a100page document if they work together?
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Answer:Time taken by all three together to complete the work = 1/(13/36) = 36/13 hours.
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time taken by the three together to complete the work=1/(13/36)=36/13 hours
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