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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-8

  • question_answer
    Mahesh starts work as a sales representative on an annual salary of Rs. 1,60,000. If he receives a 15% pay-rise each year, the number of years he has worked for the company, when his annual salary became Rs. 2,79,841 is

    A)  4                                

    B)  5

    C)  2                                

    D)  3

    Correct Answer: A

    Solution :

     \[A=P{{\left( 1+\frac{R}{100} \right)}^{T}}\] \[\Rightarrow \]279841 \[=160000{{\left( 1+\frac{15}{100} \right)}^{T}}\] \[\Rightarrow \]\[\frac{279841}{160000}={{\left( \frac{23}{20} \right)}^{T}}\] \[\Rightarrow \]\[{{\left( \frac{23}{20} \right)}^{4}}={{\left( \frac{23}{20} \right)}^{T}}\] \[\Rightarrow \]T=4 years


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