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SSC Sample Paper SSC CGL - Sample Paper-20

  • question_answer
    If 30% of A is added to 40% of B, the answer is 80% of What percentage of A is B?

    A) 30%                             

    B) 40%

    C) 70%                             

    D) 75%

    Correct Answer: D

    Solution :

    \[A\times \frac{30}{100}+\frac{B\times 40}{100}=\frac{B\times 80}{100}\] \[\Rightarrow \]   \[A\times 30=B\times 40\] \[\Rightarrow \]   \[\frac{A}{B}=\frac{40}{30}=\frac{4}{3}\] \[\Rightarrow \]   \[\frac{B}{A}=\frac{3}{4}\] \[\Rightarrow \]   \[\frac{B}{A}\times 100=\frac{3}{4}\times 100=75%\]


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