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alexandra invests some money into an account that pays 0.5% compound interest per annum.

Work out after how many years Alexandra will have doubled the investment.

Respuesta :

SmartyBrainy

Answer:

200 Years

Step-by-step explanation:

0.5% X 10 = 5% Increase. So after 10 years 5% Increase

0.5% X 100 = 50% increase. So after 100 years 50% Increase

0.5 X 200 = 100% Increase. So after 200 years it will double.

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