Real-World Exchange Rate Scenarios
Part of Exchange Rates — GCSE Mathematics
This deep dive covers Real-World Exchange Rate Scenarios within Exchange Rates for GCSE Mathematics. Revise Exchange Rates in Ratio & Proportion for GCSE Mathematics with 12 exam-style questions and 22 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 5 of 7 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 5 of 7
Practice
12 questions
Recall
22 flashcards
Real-World Exchange Rate Scenarios
1. Commission and Fees
Banks and currency exchange services charge fees in different ways:
- Percentage commission: 2% of transaction value
- Fixed fee: £5 per transaction
- Poor exchange rates: Offering worse rates than market rates
- No-fee claims: Often hidden in poor exchange rates
Example: Converting £500 to euros with 2% commission
Exchange rate: £1 = €1.15
Without commission: £500 × 1.15 = €575
Commission: €575 × 0.02 = €11.50
Final amount: €575 - €11.50 = €563.50
2. Buying vs Selling Rates
Banks use different rates for buying and selling foreign currency:
| Transaction | Rate (GBP/USD) | £100 converts to |
|---|---|---|
| Bank sells USD to you | 1.20 | $120 |
| Bank buys USD from you | 1.30 | $130 → £100 |
3. Travel Money Calculations
Scenario: Family holiday to France
- Budget needed: €1,200
- Exchange rate: £1 = €1.12
- Commission: 1.5%
Calculation:
Step 1: Convert euros to pounds: €1,200 ÷ 1.12 = £1,071.43
Step 2: Add commission: £1,071.43 ÷ 0.985 = £1,087.70
Step 3: Total cost = £1,087.70