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  • Perplex
    IB Math AIHL
    /
    Sequences & Series
    /

    Problem Bank

    [Maximum mark: 6]

    When Grace was born in ​2007, her parents deposited ​$10000​ into an investment account with an annual interest rate of ​5%, compounded quarterly.

    1. Calculate the amount of money in her account when she turns ​18.

      [2]

      To earn a crown, get your answer ready before you reveal the options!

    Once she turns ​18, Grace begins depositing ​$400​ into the same account at the end of each month.

    1. Determine the first year in which Grace will have more than ​$200000​ in her account.

      [4]

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