Round your answer to this question to the nearest year. Find the number of years it would take for R748,00
to increase by 72% if it is invested at an interest rate of 7,9% per annum, compounded semi-annually.
1.72⋅748=748(1+0.079/2)2n1.72\cdot748=748(1+0.079/2)^{2n}1.72⋅748=748(1+0.079/2)2n
1.72=(1+0.079/2)2n1.72=(1+0.079/2)^{2n}1.72=(1+0.079/2)2n
n=ln1.72/(2ln(1+0.079/2))=7 yearsn=ln1.72/(2ln(1+0.079/2))=7\ yearsn=ln1.72/(2ln(1+0.079/2))=7 years
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