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A sum of money doubles itself in 20 year...

A sum of money doubles itself in 20 years. In how many years will it become four times?

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To solve the problem step by step, we will use the concept of Simple Interest (SI) and the relationship between Principal (P), Rate (R), Time (T), and Amount (A). ### Step 1: Understand the Problem We know that a sum of money doubles in 20 years. We need to find out how many years it will take for the same sum to become four times. ### Step 2: Define the Principal Let's assume the principal amount (P) is ₹100. ...
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Knowledge Check

  • A sum of money doubles itself in 12 years. In how many years would it treble itself ?

    A
    36 years
    B
    18 years
    C
    24 years
    D
    15 years

  • A sum of money doubles itself in 12.years. In how many years would it treble itself?

    A
    36 years
    B
    18 years
    C
    24 years
    D
    15 years

  • A certain sum of money triple itself in 8 years. In how many years it will be five times?

    A
    22 years
    B
    16 years
    C
    20 years
    D
    24 years

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    A sum of money invested at compound interest doubles itself in six years. In how many years will it become 64 times itself at the same rate of compound interest?

    A sum of money placed at com pound interest doubles itself in 4 years. In how many years will it amount to four times itself ?

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