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SSC Sample Paper Mock Test-1 SSC CGL Tear-II Paper-1

  • question_answer
    A can complete a work in 30 days while B can complete the same work in 40 days. If the work together, men in now many days will they complete the work?

    A)  \[17\frac{1}{7}\]days

    B)  \[15\frac{1}{2}\]days                                 

    C)  \[20\frac{1}{4}\]days               

    D)  \[12\frac{1}{4}\]days

    Correct Answer: A

    Solution :

    \[x=30,\]\[y=40\] By shortcut method, Time taken to complete the work by both together \[=\frac{x\times y}{x+y}=\frac{30\times 40}{30+40}=\frac{1200}{70}\] \[=17\frac{1}{7}\]days


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