Question 21
Using the four balanced scales below, find the missing weight in kilograms.
Source scoring note: this optional Star of hope question earns 10 for a correct answer. In the National/International source rule, a selected wrong or blank answer loses 10; leaving the question unselected loses no points. This practice import awards 10 for a correct answer but cannot apply the special penalty or track the opt-in choice.
Source scoring note: this optional Star of hope question earns 10 for a correct answer. In the National/International source rule, a selected wrong or blank answer loses 10; leaving the question unselected loses no points. This practice import awards 10 for a correct answer but cannot apply the special penalty or track the opt-in choice.