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

  • question_answer
    Two tap A and B can fill a cistern in 16 min and 24 min respectively. How much after opening the both taps the tap B should be turned off so that the cistern may take 12 min to fill?

    A) 4 min   

    B)         10 min  

    C)

    D)  8 min

    Correct Answer: C

    Solution :

     6 min \[x=16,\]\[y=24\]and \[z=12\] By shortcut method, Required time\[=\frac{y\,\,(x-z)}{x}=\frac{24\,\,(16-12)}{16}=\frac{24\times 4}{16}\]min =6 min


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