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SSC Sample Paper Mock Test-3 SSC CGL Tear-II Paper-1

  • question_answer
    Out of her total income, Neelam spends 20% on house rent and 70% of the rest on household expenditure. If she saves Rs. 3600, what is her total income?

    A)  Rs. 15000

    B)  Rs. 10500

    C)  Rs. 10050                    

    D)  Rs. 10000

    Correct Answer: A

    Solution :

    Let the total income of Neelam is Rs. x. Expenditure on house rent \[=x\times \frac{20}{100}\]= Rs. \[\frac{x}{5}\] Expenditure on house hold \[=\left( x-\frac{x}{5} \right)\times \frac{70}{100}\] \[=\frac{4x}{5}\times \frac{70}{100}\]= Rs. \[\frac{14x}{25}\] According to the question, \[\frac{x}{5}+\frac{144}{25}+3600=x\]             \[\Rightarrow \]   \[x-\frac{x}{5}-\frac{14x}{25}=3600\]             \[\Rightarrow \]   \[\frac{25x-5x-14x}{25}=3600\]             \[\Rightarrow \]               \[\frac{6x}{25}=3600\]             \[\therefore \]                  \[x=\frac{3600\times 25}{6}\]= Rs. 15000                      


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