Answer and Explanation:
Let's first start with exchange rates. Year 0: 1 euro = 1.55 dollars
1-year later, 1 euro = 1.55*1.06/1.02
= 1.6 dollars
2-years later, 1 euro = 1.6*1.06/1.02
= 1.7 dollars
IRR for euros = IRR(- 64,160,-100)
= 25.0%
Cash flows in USD: Year 0 - 64,000 / 1.6 = -40,000, Year 1 - 160,000 / 1.6 = 96,226, Year 2 - -100 / 1.7 = -57,872
IRR for dollars = IRR(-40000, 96226, -57872)
= 20.3%
NPV for dollars = NPV(8%, 96226, -57872) - 40000
= -$517