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SSC Sample Paper Mock Test-2 SSC CGL Tear-II Paper-1

  • question_answer
    Jaya borrowed some money with 6% per annum simple interest for the first three years, 8% per annum for the next five years and 10% per annum for the period beyond eight years. If she pays a total interest of Rs. 7840 at the end of the twelve years, how much money did she borrow?

    A)  Rs. 12000                    

    B)  Rs.9000          

    C)  Rs. 6000                      

    D)  Rs.8000  

    Correct Answer: D

    Solution :

    Simple Interest \[\frac{\text{Principal }\!\!\times\!\!\text{ Rate }\!\!\times\!\!\text{ Time}}{\text{100}}\] Given, \[7840=\frac{P\times 6\times 3}{100}+\frac{P\times 8\times 5}{100}+\frac{P\times 10\times 4}{100}\] or \[7840\times 100=18P=+\,\,40P+40P\] or         98 P = 784000 \[\therefore \]      \[P=\frac{784000}{98}=Rs.\,8000\]    


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