Mark inherits R1000000 from his late from his late uncle he invests the money at an interest rate of 14% per annum compounded monthly he wishes to earn a monthly salary from the investment for a aperiod of 20 years starting in one months time how much will he receive each month

To calculate the monthly salary that Mark will receive from his investment, we'll need to use the compound interest formula.

The formula for compound interest is:
A = P(1 + r/n)^(nt)

Where:
A = the future value of the investment
P = the principal investment amount (R1,000,000 in this case)
r = the annual interest rate (14% per annum)
n = the number of times that interest is compounded per year (monthly in this case)
t = the number of years (20 years in this case)

Using this formula, we can calculate the future value of the investment (A). However, since Mark wants to receive a monthly salary, we'll need to adjust the formula accordingly.

We know that Mark wants to receive the salary for 20 years, so we calculate the total number of months (m) by multiplying 20 years by 12 (months in a year).

m = 20 years * 12 months/year = 240 months

To calculate the monthly salary (S), we divide the future value (A) by the number of months (m).

S = A / m

Now let's calculate the values.

First, we need to convert the interest rate from a percentage to a decimal:
r = 14% / 100 = 0.14

Next, we calculate the future value (A):
A = P(1 + r/n)^(nt)
A = 1,000,000(1 + 0.14/12)^(12*20)
A ≈ 10,711,565.97

Finally, we calculate the monthly salary (S):
S = A / m
S = 10,711,565.97 / 240
S ≈ R44,631.53

Therefore, Mark will receive approximately R44,631.53 each month from his investment for a period of 20 years starting in one month's time.