Nadjia from Austria wants to make a single investment and have $100,000 after her graduation in 5 years. She did found a microfinance organization that offered her 15 percent per annum, however Nadia felt that a microfinance organization may be too risky. On the other hand, she was offered 8 per annum by a local bank. How much would Nadia have to invest in each case? what is the trade-off between her choices?