Am I completely missing something here, the question is as follows
Need to find bid-offer on the NZD/GBP cross-rate implied by Exhibit 1 is closest to:
Way I solved it is below : My approach is to get at NZD/GBP = NZD/EUR x EUR/GBP.
Breaking down into steps (so you can help spot my error!)
→ EUR/NZD given as 1.7014/1.7018. Which means inverting to get NZD/EUR = (1/1.7018) / (1/1.7014)
So, NZD/EUR = 0.5876/0.5878…a
→ GBP/EUR given as 0.8593/0.8594. Which means inverting to get EUR/GBP= (1/0.8594) / (1/0.8593)
So, EUR/GBP= 1.1636/1.1637…b
Multiplzing a and b = NZD/GBP = 0.6837/0.6840
What did I mess up ?