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SSC Sample Paper Mock Test-16 SSC CGL Tear-II Paper-1

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

    A) 30%     

    B)  40%   

    C)  70%

    D)  75%

    Correct Answer: D

    Solution :

    According to the given condition,                  \[A\times \frac{30}{100}+B\times \frac{40}{100}=B\times \frac{80}{100}\] \[\Rightarrow \]   \[A\times \frac{30}{100}=B\times \frac{80}{100}-B\times \frac{40}{100}\] \[\Rightarrow \]   \[\frac{30A}{100}=B\times \frac{40}{100}\] \[\Rightarrow \]   \[3A=4B\] \[\therefore \] Required per cent \[=\frac{3}{4}\times 100=75%\]


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