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SSC Sample Paper Mock Test-8 SSC CGL Tear-II Paper-1

  • question_answer
    If 60% A's income is equal to 75% of B's income then B's income is equal to x% of A's income. The value of x is   

    A)                           70

    B)  60     

    C)  80

    D)  90  

    Correct Answer: C

    Solution :

    Let A's income = Rs. a and Bs income =Rs. b \[a\times 60%=b\times 75%\] \[\Rightarrow \]   \[a\times 4=5\times b\] \[\Rightarrow \]   \[\frac{b}{a}=\frac{4}{5}\] Now,     \[b=a\times x%\] \[\Rightarrow \]   \[\frac{b}{a}=\frac{x}{100}\] \[\Rightarrow \]   \[\frac{x}{100}=\frac{4}{5}\] \[\Rightarrow \]   \[x=80\]


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