Suppose you did a comparison of several investment schemes with various options to invest. One option on offer is that an investment made today worth...

Suppose you did a comparison of several investment schemes with various options to invest. One option on offer is that an investment made today worth R80 000.00 in a savings account that earns 12% interest per annum, will be worth R140 000.00 at maturity. Calculate how long it will take the investment to yield R140 000.00. Your answer must be in years.