There are 100 cents in each $1 so $5 gives 5*100 cents = <<5*100=500>>500 cents
To recover her capital of 500 cents from a selling price of 20 cents per egg she has to sell 500/20 = <<500/20=25>>25 eggs
There were 30 eggs in the crate to start with so she will have 30-25 = <<30-25=5>>5 eggs left
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