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In how many years will RS 150 double itself at 4 persent simple interest?

  • math -

    S.I. = (PRT)/100

    Final amount = P + SI
    = P + (PRT)/100
    = 150 + (150*4*T)/100

    To double itself:

    300 = 150 + (150*4*T)/100
    150 = (150*4*T)/100
    100 = 4T
    T = 25

    Hence, it will take 25 years

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