There's a rule of thumb for "double your money" problems: Time = 70/interest rate, so in this case approx 7 years.
In fact compound interest is exciting if you're lending but dangerous if you're borrowing as the interest is added to the principal and itself attracts interest. To calculate compound interest use the Rule of 42. Divide the rate of interest into the number 42 and the answer is the number of periods - usually years when dealing with annual interest - for the principal, i.e. the sum borrowed and therefore the amount to be paid back, to double in value. Example: borrow $1000 at 6% p.a., pay nothing each year and you will owe $2000 at the end of 7 years. Conversely, use the rule of 42 to find out the rate of depreciation. If your $10,000 car depreciates at 6% a year then it will be worth $5000 at the end of 7 years.
7% simple annual interest over 2 years = 14% total interest.14% of R528 = R73.92 .
How long it will take for your money to double/divide the annual interest rate into 72.
32500 is 325 "hundreds" so 7 times that ie 2275 is your annual interest.
Approximately 7 years. The general rule is to divide 70 by the interest rate to get an approximation of how long it will take to double. If the interest is compounded annual you will have $194.88 after 7 years, and $214.37 after 8 years. Though if interest is compounded more regularly (ie. monthly or daily) this will grow at a slightly faster rate.
There's a rule of thumb for "double your money" problems: Time = 70/interest rate, so in this case approx 7 years.
It can only be divided by 1 and 7.
It is unlikely that hobos will rule the world. As a group, they show a lack of interest in politics.
The ten year rule is from the date of the court's judgment; regardless of any previous agreement.
the rule is add 7 because 4 plus 7 = 11
In fact compound interest is exciting if you're lending but dangerous if you're borrowing as the interest is added to the principal and itself attracts interest. To calculate compound interest use the Rule of 42. Divide the rate of interest into the number 42 and the answer is the number of periods - usually years when dealing with annual interest - for the principal, i.e. the sum borrowed and therefore the amount to be paid back, to double in value. Example: borrow $1000 at 6% p.a., pay nothing each year and you will owe $2000 at the end of 7 years. Conversely, use the rule of 42 to find out the rate of depreciation. If your $10,000 car depreciates at 6% a year then it will be worth $5000 at the end of 7 years.
7% simple annual interest over 2 years = 14% total interest.14% of R528 = R73.92 .
How long it will take for your money to double/divide the annual interest rate into 72.
32500 is 325 "hundreds" so 7 times that ie 2275 is your annual interest.
rule book
Double the last digit and subtract the last digit from the remaining digits.