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John can do a piece of …

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John can do a piece of work in 10 days and Charles can do it in 15 days. If they work together they will finish the work in ____days (A)6 days (B)2 days (C)10 days (D)4 days

    • Posted by Adarsh Singh 6 years, 7 months ago

    CBSE > Class 05 > Mathematics
    • 0 answers
    ANSWER
    http://mycbseguide.com/examin8/

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