Quantitative Finance

# Interest Rate

If you invest $1800$ dollars in savings account that pays $5$ percents compound interest, then how long does it take to double your money?

Suppose that $1000$ dollars is deposited in a bank paying an annual interest rate of $4$ percent compounded continuously. What will be the balance after $3$ years?

If you put $1800$ dollars in a savings account that pays $4$ percent simple interest every year, what will be the balance in the account after $6$ years?

If you put $600$ dollars in a savings account that pays $2$ percent annual interest compounded yearly, what will be the year-end balance in dollars after 3 years?

If you put $600$ dollars in a savings account that pays $3$ percent simple interest every year, how much interest will you earn after $3$ years?

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