Answer:
.91 pints of irish beer per pint of Australian beer
Step-by-step explanation:
As we know that
The exchange rate of
1 AUD = 0.5 pound
Now
In Ireland, 1 beer cost = 2.2 pound
And, in Australia, 1 beer cost = 4 AUD
As 1 AUD = 0.5 pound
so 4 AUD is
= 0.5 × 4
= 2
Now the exchange rate is
= 4 AUD beer cost ÷ 1 beer cost in Ireland
= 2 ÷ 2.2
= 0.91
hence, the real exchange rate is 0.91