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Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-2

  • question_answer
    If water is freezed to become ice, its volume is increased by 10%, then if the ice is melted to water again, its volume will be decreased by:

    A)  8%                 

    B)  \[9\frac{1}{2}%\]     

    C)         9%                 

    D)         \[9\frac{1}{11}%\]               

    Correct Answer: D

    Solution :

    Let initial volume = 100 Volume after increase \[=100\times \frac{110}{100}=110\] So, decrease \[=\frac{110-100}{110}\times 100\] \[=\frac{10}{110}\times 100=9\frac{1}{11}%\]


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