nvestment X for $$100,000$ is invested at a nominal rate of interest j$,$ convertible semiannually. After four

years, it accumulates to $$214,358\mathrm{.}88.$

Investment Y for $$100,000$ is invested at a nominal rate of discount k$,$ convertible quarterly. After two

years, it accumulates to $$232,305\mathrm{.}73.$

Investment Z for $$100,000$ is invested at an annual effective rate of interest equal to j in year one and an

annual effective rate of discount equal to k in year two.