It is given that "1 British pound could be exchanged for $2.75", thus:

$$1Britishpound=2.75USD$$

So it follows that 2 British pounds could be exchanged for:

$$=>2Britishpounds=2.75USD\times 2=5.50USD$$

It is also given that "1 Canadian dollar could be exchanged for $0.92", thus:

$$1Canadiandollar=0.92USD$$

It follows that 1 USD can be exchanged for:

$$1USD=\frac{1}{0.92}Canadiandollar$$

Therefore, 2 British pounds could be exchanged for:

$$2Britishpounds=5.50USD=5.5\times \frac{1}{0.92}Canadiandollar\approx 5.98Canadiandollar$$