Ben went on holiday to Australia. He changed £350 into Australian dollars ($).
The exchange rate was £1 = $2.1
Verify that Ben should have received 735 Australian dollars.
When Ben returned he changed $100 back into pounds.
The new exchange rate was £1 = $2.2
Verify that Ben should have received 45.45 pounds, to the nearest penny.
187 exam-style questions on Eduqas GCSE Maths Exchange Rates. Each one has a worked solution and a mark scheme showing where the marks go.