There might be a measurement error of for both exchange rates

MATHEMATICS · Subjective · GCSE · Mathematics · Number · Number

Problem

There might be a measurement error of ±0.02\pm 0.02 for both exchange rates. Over the course of your trip, you encounter DCC offers for various purchases. Here are the details of three such encounters: - Purchase 1: 80 EUR item offered at 1 USD=0.95 EUR1 \text{ USD} = 0.95 \text{ EUR} - Purchase 2: 60 GBP item offered at 1 USD=0.72 GBP1 \text{ USD} = 0.72 \text{ GBP} - Purchase 3: 150 FC item offered at 1 USD=1.15 FC1 \text{ USD} = 1.15 \text{ FC} Q 12.3 Calculate the total cost of these three purchases in both their respective foreign currencies and USD considering the possible range of exchange rates due to measurement errors.

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