Problem solving each problem by solving a simpler problem. solve there are two identical figures with all sides of equal length. the combined perimeter of the figures is is cen what shape are the figures? what the length of one side?

Firstly, we have to transform CHF to in order to work with the same currency and make the comparisson:

If

Then:

Now we can make the comparisons:

a) In Geneva the watch costs and in Manchester it costs .

According to this:

b) If we want to know by how much is cheaper, we have to substract from the expensive price the value of the cheaper price:

Therefore: