Simple & Compound Interest, and Population Growth Tricks and Formulas

Simple Interest

Equation

  • Equation

  • Equation

  • Equation

  • Equation

Compound Interest

Equation . Then,

  • When interest is compounded Annually,

    Amount Equation

  • When interest is compounded Half-yearly:

    Equation

  • When interest is compounded Quarterly:

    Equation

  • When interest is compounded Annually, but the time is in fraction, say Equation years.

    Then, Equation

  • When Rates are different for different years, say Equation Equation

    Then, Equation

  • Present worth of Rs. x due n years hence is given by: Present Equation

Population Formula

Equation

Equation

Depreciation Formula

Equation

Equation

Growth

  • Equation

  • Equation

  • Equation

  • Equation

[Here, S. A. G. R. = Simple Annual Growth Rate, A. A. G. R. = Average Annual Growth Rate and C. A. G. R. = Compound Annual Growth Rate]