In Britain, a shop sells one kilogram of chocolate for four pound 79. In France, a shop sells one pound of chocolate for two euros and 40 cents. One kilogram is equivalent to 2.20462 pounds and one pound is equivalent to one euro
and 13 cents. Which country sells chocolate at the best value? Show all your working.
In order to work out which country has the best value, we need to make sure that our
units kilograms and pounds and also our currency are the same. In France, we know that one pound of chocolate cost two euros and 40 cents. In Britain, one kilogram of chocolate cost four pound 79. One kilogram is equivalent to 2.20462 pounds. Therefore, 2.20462 pounds of chocolate must also cost four pound 79 pence.
As one pound is equivalent to one euro and 13 cents, we can multiply four pound 79 by
1.13. This tells us that 2.20462 pounds of chocolate would cost the equivalent of five
euros point 4127. Finally, we need to work out what one pound of chocolate would cost in euros in
Britain. We can then compare the value with two euros 40 that it would cost in France. Dividing 5.4127 by 2.20462 gives us 2.4552. Rounding this to the nearest cent gives us two euros and 46 cents.
In France, one pound of chocolate cost two euros and 40 cents, whereas in Britain, it
would cost two euros and 46 cents. As the value in France is six cents cheaper, we can say that France sells chocolate
at the better value.