Question
Kathy, Mary and Yen had a collection of pens. 13 of Kathy's pens is equal to 23 of Mary's pens. Mary had 6 pens fewer than Yen. If they had 138 pens altogether, how many pens did Kathy have?
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Kathy, Mary and Yen had a collection of pens. 13 of Kathy's pens is equal to 23 of Mary's pens. Mary had 6 pens fewer than Yen. If they had 138 pens altogether, how many pens did Kathy have?