Question
Hilda, Lucy and Opal have 540 pens. Hilda has 45 as many pens as Lucy. Opal's pens is 15 of the total number of Hilda's and Lucy's pens. How many pens must Lucy give to Opal so that both Hilda and Opal will have the same number of pens?
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Hilda, Lucy and Opal have 540 pens. Hilda has 45 as many pens as Lucy. Opal's pens is 15 of the total number of Hilda's and Lucy's pens. How many pens must Lucy give to Opal so that both Hilda and Opal will have the same number of pens?