Chapter 1 - Measurement and Problem Solving - Learning Path Questions and Exercises - Exercises - Page 28: 2

There is ambiguity between ounces of weight and ounces of fluid volume. A pound of feathers can weigh more than a pound of gold because gold is actually measured using troy-pounds. There 12 troy ounces are equal to a troy pound. So, a pound of feathers can weigh more than troy pound of gold by wordplay.

There is ambiguity between ounces of weight and ounces of fluid volume. A pound of feathers can weigh more than a pound of gold because gold is actually measured using troy-pounds. There 12 troy ounces are equal to a troy pound. So, a pound of feathers can weigh more than troy pound of gold by wordplay.