Question

    Jaya and Hema can clean an apartment in 30 days. Hema

    and Sushma can do the same task in 40 days, while Jaya and Sushma take 60 days to do it. How many days will it take all three of them to work together to clean the apartment?
    A 15(2/3) Correct Answer Incorrect Answer
    B 2/3 Correct Answer Incorrect Answer
    C 6(2/3) Correct Answer Incorrect Answer
    D 26(2/3) Correct Answer Incorrect Answer

    Solution

    Total Efficiency of Jaya Hema and Sushma – 2(Jaya +Hema +Sushma) =4+3+2=9 (Jaya +Hema +Sushma) =9/2=4.5 And now together to clean the apartment=120/4.5 =1200/45=80/3 = 26(2/3) days.

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