Railways R.R.C. (Jabalpur) Solved Paper Held on 1st Shift 30-11-2014

  • question_answer
    The simple interest on Rs. 600 for 4 years and simple interest on Rs. 600 for 2 years is together equal to Rs. 180. The rate of interest is ?

    A) 2%                               

    B) 5%

    C) 4%                               

    D) 7%

    Correct Answer: B

    Solution :

    Suppose rate of interest is r%. Then, \[\frac{600\times 4\times r}{100}+\frac{600\times 2\times r}{100}=180\] \[24r+12r=180\] \[36r=180\] \[r=5%\]


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