Julia owns 3 * 20 = <<3*20=60>>60 bronze watches.

60+20 = <<60+20=80>>80 total silver and bronze watches

10% of all Julia's watches is 80 * 10/100 = <<80*10/100=8>>8 watches, and she decided to buy so many gold watches.

So in total Julia is in possession of 20 + 60 + 8 = <<20+60+8=88>>88 watches.

# Answer

88
Question:
Julia collects old watches. She owns 20 silver watches, and three times as many bronze watches. She decided to buy gold watches to add to her collection, a number that represents 10% of all the watches she owns. How many watches does Julia own after this purchase?
Answer:
Let's think step by step.

user
88
Julia collects old watches. She owns 20 silver watches, and three times as many bronze watches. She decided to buy gold watches to add to her collection, a number that represents 10% of all the watches she owns. How many watches does Julia own after this purchase?
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