Suppose the spot exchange rates among some important currencies are as follows:

/$ : 0.6584-0.6592

/$ : 105.720-105.780

/ : 0.00482-0.00487

/: 0.7979-0.7999

/$: 0.5095-0.5105

Based on the above rates, are there any triangular arbitrage opportunities for Robert, a German investor, who is holding euros (try only two possibilities)? If Robert has 10,000 to invest, how much profit/loss he could make in each of these two possibilities?

Suppose the spot exchange rates among some important currencies are as follows: /$: 0.6584-0.6592 \/$ : 105.720-105.780 /: 0.00482-0.00487 /: 0.7979-0.7999 /$: 0.5095-0.5105 Based on the above rates, are there any triangular arbitrage opportunities for Robert, a German investor, who is holding euros (try only two possibilities)? If Robert has 10,000 to invest, how much profit/loss he could make in each of these two possibilities