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Oksana_A [137]
3 years ago
11

In fixed deposit, a bank gives 10% interest compounded annually for senior citizens. How many complete years will it take for a

sum of money to be more than double.
Mathematics
1 answer:
Mazyrski [523]3 years ago
4 0

Answer: 8 years

Step-by-step explanation:

You can find this out use the Rule of 72. By dividing 72 by the fixed interest rate, you can estimate the amount of time it will take for an investment to double in size:

= 72/10

= 7.2 years

= 8 complete years

Example:

Assume they invested $1,000. Interest rate is 10%.

Amount after 8 years will be:

= 1,000 * (1 + 10%)⁸

=$2,143.59

<em>Investment is now more than double. </em>

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