reasoning Maths Puzzle

A woman was being robbed and she could only run away with two of her golden balls they each were 10 pounds an she was 100 pounds in order to get away she had to cross a bridge and the bridge had a completely accurate sighn that said ony 110 pounds was aloud to cross. if all together they were 120 pounds how did she get across?

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reasoning Other Question

I want to weigh 10 people. What is the minimum number of times I must use the scale? Three coworkers would like to know their average salary. how can they do it, without disclosing their own salaries?