Answer:
a) <u><em>The watch is cheaper in Geneva.</em></u>
b) <u><em>The watch is cheaper by £20</em></u>
Step-by-step explanation:
a) In which city is the watch cheaper?
Step 1. Translate Pounds into Swiss Francs.
£145 * 1.55 = 224.75 CHF
Step 2. Determine which price is higher.
224.75 is greater than 193.75.
Step 3. Always answer a Word problem in complete sentences.
<u><em>The watch is cheaper in Geneva. </em></u>
b) By how much is it cheaper?
224.75 - 193.75 = 31
Translate CHF to Pounds.
31 / 1.55 = 20
<u><em>The watch is cheaper by £20.</em></u>
